Cyclone and Anticyclone
a) Low-pressure system ✅
b) High-pressure system
c) Equatorial calm
d) Polar front
Explanation: Cyclones form in low-pressure areas with rising air.
2. What is an anticyclone?
a) High-pressure system ✅
b) Low-pressure system
c) Equatorial calm
d) Polar front
Explanation: Anticyclones form in high-pressure areas with descending air.
3. Which direction do cyclones rotate in Northern Hemisphere?
a) Counterclockwise ✅
b) Clockwise
c) East to west
d) West to east
Explanation: Coriolis effect causes counterclockwise rotation in Northern Hemisphere.
4. Which direction do cyclones rotate in Southern Hemisphere?
a) Clockwise ✅
b) Counterclockwise
c) East to west
d) West to east
Explanation: Coriolis effect causes clockwise rotation in Southern Hemisphere.
5. Which direction do anticyclones rotate in Northern Hemisphere?
a) Clockwise ✅
b) Counterclockwise
c) East to west
d) West to east
Explanation: Anticyclones rotate clockwise in Northern Hemisphere.
6. Which direction do anticyclones rotate in Southern Hemisphere?
a) Counterclockwise ✅
b) Clockwise
c) East to west
d) West to east
Explanation: Anticyclones rotate counterclockwise in Southern Hemisphere.
7. What is the calm center of a cyclone called?
a) Eye ✅
b) Eyewall
c) Jet stream
d) Polar front
Explanation: The eye is the calm center of a cyclone.
8. What surrounds the eye of a cyclone?
a) Eyewall ✅
b) Jet stream
c) Polar front
d) Doldrums
Explanation: Eyewall has strongest winds and rainfall.
9. What is the main energy source of tropical cyclones?
a) Warm ocean ✅
b) Cold air
c) Jet streams
d) Polar winds
Explanation: Warm ocean waters fuel tropical cyclones.
10. What is the main energy source of temperate cyclones?
a) Temperature contrast ✅
b) Warm ocean
c) Polar winds
d) Jet streams
Explanation: Temperate cyclones form due to temperature differences.
11. What is the pressure system associated with cyclones?
a) Low pressure ✅
b) High pressure
c) Equatorial calm
d) Polar front
Explanation: Cyclones form in low-pressure areas.
12. What is the pressure system associated with anticyclones?
a) High pressure ✅
b) Low pressure
c) Equatorial calm
d) Polar front
Explanation: Anticyclones form in high-pressure areas.
13. Which weather is associated with cyclones?
a) Cloudy and rainy ✅
b) Clear skies
c) Dry weather
d) Calm winds
Explanation: Cyclones bring clouds and rain.
14. Which weather is associated with anticyclones?
a) Clear skies ✅
b) Cloudy and rainy
c) Storms
d) Tornadoes
Explanation: Anticyclones bring clear skies.
15. Which cyclone occurs in tropics?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Tropical cyclones form over warm tropical oceans.
16. Which cyclone occurs in mid-latitudes?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Temperate cyclones form along polar front.
17. Which cyclone is also called hurricane in Atlantic?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Hurricanes are tropical cyclones in Atlantic.
18. Which cyclone is also called typhoon in Pacific?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Typhoons are tropical cyclones in Pacific.
19. Which cyclone is also called willy-willy in Australia?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Willy-willy is a tropical cyclone in Australia.
20. Which cyclone is also called bagyo in Philippines?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Bagyo is a tropical cyclone in Philippines.
21. Which cyclone is also called tornado in USA?
a) Small violent storm ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Tornadoes are small, violent rotating storms.
22. Which cyclone is also called twister?
a) Tornado ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Tornadoes are also called twisters.
23. Which cyclone is also called dust devil?
a) Local whirlwind ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Dust devils are small whirlwinds lifting dust.
24. Which cyclone is also called nor’easter in USA?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Nor’easter is a temperate cyclone along USA’s east coast.
25. Which cyclone is also called blizzard in Canada?
a) Snowstorm ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Blizzard is a snowstorm with strong winds.
26. What is the minimum sea surface temperature needed for tropical cyclone formation?
a) 26°C ✅
b) 20°C
c) 15°C
d) 10°C
Explanation: Tropical cyclones require sea temperatures above 26°C.
27. What is the minimum depth of warm water needed for cyclone formation?
a) 60 m ✅
b) 20 m
c) 10 m
d) 5 m
Explanation: Warm water must extend to at least 60 m depth.
28. What is the main force that initiates cyclone rotation?
a) Coriolis force ✅
b) Gravity
c) Friction
d) Ocean currents
Explanation: Coriolis force deflects winds, initiating rotation.
29. Where do tropical cyclones never form?
a) Near the equator ✅
b) Mid-latitudes
c) Subtropics
d) Polar regions
Explanation: Coriolis force is too weak near the equator.
30. Which part of a cyclone has the strongest winds?
a) Eyewall ✅
b) Eye
c) Outer bands
d) Doldrums
Explanation: Eyewall surrounds the eye with maximum winds.
31. Which part of a cyclone is calm?
a) Eye ✅
b) Eyewall
c) Outer bands
d) Jet stream
Explanation: The eye is calm with clear skies.
32. Which part of a cyclone has spiral rain bands?
a) Outer region ✅
b) Eye
c) Eyewall
d) Jet stream
Explanation: Spiral rain bands extend outward from the cyclone.
33. Which ocean basin has the most cyclones annually?
a) Northwest Pacific ✅
b) North Atlantic
c) Indian Ocean
d) South Pacific
Explanation: Northwest Pacific has the highest cyclone frequency.
34. Which ocean basin has the fewest cyclones annually?
a) South Atlantic ✅
b) North Atlantic
c) Indian Ocean
d) Northwest Pacific
Explanation: South Atlantic rarely experiences cyclones.
35. Which cyclone struck USA in 2005?
a) Hurricane Katrina ✅
b) Typhoon Haiyan
c) Cyclone Amphan
d) Cyclone Bhola
Explanation: Hurricane Katrina devastated USA in 2005.
36. Which cyclone struck Philippines in 2013?
a) Typhoon Haiyan ✅
b) Hurricane Katrina
c) Cyclone Amphan
d) Cyclone Bhola
Explanation: Typhoon Haiyan devastated Philippines in 2013.
37. Which cyclone struck India in 2020?
a) Cyclone Amphan ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Bhola
Explanation: Cyclone Amphan struck Bay of Bengal in 2020.
38. Which cyclone struck Bangladesh in 1970?
a) Cyclone Bhola ✅
b) Cyclone Sidr
c) Cyclone Amphan
d) Cyclone Fani
Explanation: Cyclone Bhola killed over 300,000 people.
39. Which cyclone struck Bangladesh in 2007?
a) Cyclone Sidr ✅
b) Cyclone Bhola
c) Cyclone Amphan
d) Cyclone Fani
Explanation: Cyclone Sidr caused widespread damage in Bangladesh.
40. Which cyclone struck Myanmar in 2008?
a) Cyclone Nargis ✅
b) Cyclone Bhola
c) Cyclone Amphan
d) Cyclone Sidr
Explanation: Cyclone Nargis devastated Myanmar in 2008.
41. Which cyclone struck Odisha in 2019?
a) Cyclone Fani ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Fani struck Odisha in 2019.
42. Which cyclone struck Arabian Sea in 2021?
a) Cyclone Tauktae ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Tauktae struck western India in 2021.
43. Which cyclone struck Bay of Bengal in 2021?
a) Cyclone Yaas ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Yaas struck Odisha and West Bengal in 2021.
44. Which cyclone struck Bay of Bengal in 2022?
a) Cyclone Asani ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Asani struck eastern India in 2022.
45. Which cyclone struck Mozambique in 2019?
a) Cyclone Idai ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Idai devastated Mozambique in 2019.
46. Which cyclone struck Oman in 2007?
a) Cyclone Gonu ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Gonu struck Oman in 2007.
47. Which cyclone struck Darwin in 1974?
a) Cyclone Tracy ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Cyclone Tracy struck Darwin, Australia in 1974.
48. Which cyclone struck Bay of Bengal in 1971?
a) Cyclone Odisha Super Cyclone
b) Cyclone Bhola ✅
c) Cyclone Sidr
d) Cyclone Amphan
Explanation: Cyclone Bhola was one of the deadliest in 1971.
49. Which cyclone struck Bay of Bengal in 1999?
a) Odisha Super Cyclone ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Odisha Super Cyclone devastated eastern India in 1999.
50. Which cyclone struck Bay of Bengal in 2019?
a) Cyclone Fani ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Fani struck Odisha in 2019.
51. What is a temperate cyclone also called?
a) Extra-tropical cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Temperate cyclones are also called extra-tropical cyclones.
52. What theory explains temperate cyclone formation?
a) Polar front theory ✅
b) Coriolis theory
c) Monsoon theory
d) Jet stream theory
Explanation: Polar front theory explains temperate cyclone development.
53. Which latitudes experience temperate cyclones?
a) 35°–65° ✅
b) 0°–10°
c) 10°–20°
d) 70°–90°
Explanation: Temperate cyclones occur in mid-latitudes.
54. Which winds dominate temperate cyclones?
a) Westerlies ✅
b) Trade winds
c) Polar easterlies
d) Monsoons
Explanation: Westerlies drive temperate cyclones.
55. Which front is associated with temperate cyclones?
a) Polar front ✅
b) Equatorial front
c) Subtropical front
d) Monsoon front
Explanation: Temperate cyclones form along polar front.
56. Which air masses meet at polar front?
a) Warm westerlies & cold polar easterlies ✅
b) Trade winds & monsoons
c) Tropical & subtropical winds
d) Jet streams & doldrums
Explanation: Polar front is the boundary of warm and cold air.
57. Which stage begins temperate cyclone formation?
a) Wave stage ✅
b) Mature stage
c) Occlusion stage
d) Dissipation stage
Explanation: Cyclone begins with wave formation on polar front.
58. Which stage has maximum intensity?
a) Mature stage ✅
b) Wave stage
c) Occlusion stage
d) Dissipation stage
Explanation: Mature stage has strongest winds and rainfall.
59. Which stage ends temperate cyclone life cycle?
a) Occlusion stage ✅
b) Wave stage
c) Mature stage
d) Formation stage
Explanation: Occlusion stage marks cyclone weakening.
60. Which front advances faster in temperate cyclone?
a) Cold front ✅
b) Warm front
c) Stationary front
d) Monsoon front
Explanation: Cold front moves faster than warm front.
61. Which front brings steady rainfall?
a) Warm front ✅
b) Cold front
c) Stationary front
d) Monsoon front
Explanation: Warm front causes prolonged rainfall.
62. Which front brings heavy showers?
a) Cold front ✅
b) Warm front
c) Stationary front
d) Monsoon front
Explanation: Cold front causes intense rainfall.
63. Which front forms during occlusion?
a) Occluded front ✅
b) Warm front
c) Cold front
d) Stationary front
Explanation: Occluded front forms when cold front overtakes warm front.
64. Which cyclone struck USA in 1993?
a) Superstorm ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Superstorm of 1993 was a temperate cyclone.
65. Which cyclone struck Europe in 1990?
a) Burns’ Day Storm ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Burns’ Day Storm was a temperate cyclone in Europe.
66. Which cyclone struck UK in 1987?
a) Great Storm ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Great Storm of 1987 was a temperate cyclone.
67. Which cyclone struck USA in 2011?
a) Nor’easter ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Nor’easter is a temperate cyclone in USA.
68. Which cyclone struck Europe in 1999?
a) Lothar & Martin Storms ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Lothar & Martin were temperate cyclones in Europe.
69. Which cyclone struck Europe in 2007?
a) Kyrill Storm ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Kyrill was a temperate cyclone in Europe.
70. Which cyclone struck USA in 2010?
a) Snowmageddon ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Snowmageddon was a temperate cyclone with heavy snow.
71. Which cyclone struck USA in 2014?
a) Polar Vortex Storm ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Polar vortex storm affected USA in 2014.
72. Which cyclone struck Europe in 2013?
a) St. Jude Storm ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: St. Jude was a temperate cyclone in Europe.
73. Which cyclone struck USA in 2015?
a) Blizzard Juno ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Blizzard Juno was a temperate cyclone in USA.
74. Which cyclone struck Europe in 2018?
a) Storm Emma ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Storm Emma was a temperate cyclone in Europe.
75. Which cyclone struck USA in 2021?
a) Winter Storm Uri ✅
b) Hurricane Katrina
c) Typhoon Haiyan
d) Cyclone Amphan
Explanation: Winter Storm Uri was a temperate cyclone in USA.
76. What is a tornado?
a) Small, violent rotating storm ✅
b) Large tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Tornadoes are intense, small‑scale rotating storms.
77. What is the shape of a tornado?
a) Funnel ✅
b) Dome
c) Sphere
d) Column
Explanation: Tornadoes appear as funnel‑shaped clouds.
78. What is the average diameter of a tornado?
a) 100–500 m ✅
b) 5–10 km
c) 50 km
d) 100 km
Explanation: Tornadoes are narrow, typically 100–500 m wide.
79. What is the average lifespan of a tornado?
a) Few minutes ✅
b) Several hours
c) Several days
d) One week
Explanation: Tornadoes usually last only minutes.
80. What scale measures tornado intensity?
a) Fujita scale ✅
b) Saffir‑Simpson scale
c) Beaufort scale
d) Richter scale
Explanation: Fujita scale measures tornado strength.
81. What is the strongest category on Fujita scale?
a) F5 ✅
b) F1
c) F2
d) F3
Explanation: F5 tornadoes are the most destructive.
82. What is the average wind speed of F5 tornadoes?
a) > 400 km/h ✅
b) 100 km/h
c) 200 km/h
d) 300 km/h
Explanation: F5 tornadoes exceed 400 km/h winds.
83. Which tornado struck USA in 1925?
a) Tri‑State Tornado ✅
b) Joplin Tornado
c) Bridge Creek‑Moore Tornado
d) Super Outbreak
Explanation: Tri‑State Tornado was the deadliest in US history.
84. Which tornado struck USA in 2011?
a) Joplin Tornado ✅
b) Tri‑State Tornado
c) Bridge Creek‑Moore Tornado
d) Super Outbreak
Explanation: Joplin Tornado killed over 150 people in Missouri.
85. Which tornado struck Oklahoma in 1999?
a) Bridge Creek‑Moore Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Super Outbreak
Explanation: Bridge Creek‑Moore Tornado had record wind speeds.
86. Which tornado outbreak struck USA in 2011?
a) Super Outbreak ✅
b) Dust Bowl
c) Hurricane Katrina
d) Cyclone Amphan
Explanation: The 2011 Super Outbreak was one of the largest tornado events.
87. Which tornado struck Bangladesh in 1989?
a) Daulatpur–Saturia Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Daulatpur–Saturia Tornado was the deadliest tornado worldwide.
88. Which tornado struck USA in 2013?
a) Moore Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Moore Tornado devastated Oklahoma in 2013.
89. Which tornado struck USA in 1974?
a) Super Outbreak ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: 1974 Super Outbreak was a historic tornado event.
90. Which tornado struck USA in 2019?
a) Dayton Tornadoes ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Dayton Tornadoes struck Ohio in 2019.
91. Which tornado struck USA in 2020?
a) Nashville Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Nashville Tornado struck Tennessee in 2020.
92. Which tornado struck USA in 2021?
a) Kentucky Tornadoes ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Kentucky Tornadoes caused widespread damage in 2021.
93. Which tornado struck USA in 2023?
a) Rolling Fork Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Rolling Fork Tornado devastated Mississippi in 2023.
94. Which tornado struck USA in 2024?
a) Greenfield Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Greenfield Tornado struck Iowa in 2024.
95. Which tornado struck India in 1978?
a) Tornado in West Bengal ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: A deadly tornado struck West Bengal in 1978.
96. Which tornado struck USA in 1997?
a) Jarrell Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Jarrell Tornado devastated Texas in 1997.
97. Which tornado struck USA in 2007?
a) Greensburg Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Greensburg Tornado destroyed much of Kansas town.
98. Which tornado struck USA in 2008?
a) Super Tuesday Tornadoes ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Super Tuesday outbreak struck southern USA.
99. Which tornado struck USA in 2014?
a) Pilger Twin Tornadoes ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Pilger Twin Tornadoes hit Nebraska in 2014.
100. Which tornado struck USA in 2018?
a) Marshalltown Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Marshalltown Tornado struck Iowa in 2018.
101. What is an anticyclone?
a) High-pressure system ✅
b) Low-pressure system
c) Tropical cyclone
d) Tornado
Explanation: Anticyclones form in high-pressure areas with descending air.
102. Which direction do anticyclones rotate in Northern Hemisphere?
a) Clockwise ✅
b) Counterclockwise
c) East to west
d) West to east
Explanation: Coriolis effect causes clockwise rotation in Northern Hemisphere.
103. Which direction do anticyclones rotate in Southern Hemisphere?
a) Counterclockwise ✅
b) Clockwise
c) East to west
d) West to east
Explanation: Anticyclones rotate counterclockwise in Southern Hemisphere.
104. Which weather is associated with anticyclones?
a) Clear skies ✅
b) Cloudy and rainy
c) Storms
d) Tornadoes
Explanation: Anticyclones bring calm, clear weather.
105. Which winds dominate anticyclones?
a) Diverging winds ✅
b) Converging winds
c) Trade winds
d) Westerlies
Explanation: Winds diverge outward from high-pressure centers.
106. Which air movement occurs in anticyclones?
a) Descending air ✅
b) Rising air
c) Horizontal air only
d) Jet streams
Explanation: Air descends in anticyclones, suppressing clouds.
107. Which anticyclone affects Europe in summer?
a) Azores High ✅
b) Siberian High
c) Hawaiian High
d) Icelandic Low
Explanation: Azores High dominates European summer weather.
108. Which anticyclone affects Asia in winter?
a) Siberian High ✅
b) Azores High
c) Hawaiian High
d) Icelandic Low
Explanation: Siberian High brings cold, dry winter winds.
109. Which anticyclone affects Pacific Ocean?
a) Hawaiian High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: Hawaiian High dominates central Pacific weather.
110. Which anticyclone affects Indian Ocean?
a) Mascarene High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: Mascarene High influences Indian monsoon winds.
111. Which anticyclone affects South Atlantic?
a) St. Helena High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: St. Helena High dominates South Atlantic weather.
112. Which anticyclone affects South Pacific?
a) South Pacific High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: South Pacific High influences trade winds.
113. Which anticyclone affects North America?
a) Canadian High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: Canadian High dominates winter weather in North America.
114. Which anticyclone affects Africa?
a) Sahara High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: Sahara High influences desert climate.
115. Which anticyclone affects Australia?
a) Australian High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: Australian High dominates subtropical climate.
116. Which anticyclone affects South America?
a) South American High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: South American High influences subtropical regions.
117. Which anticyclone affects North Atlantic?
a) Azores High ✅
b) Siberian High
c) Hawaiian High
d) Icelandic Low
Explanation: Azores High dominates North Atlantic weather.
118. Which anticyclone affects North Pacific?
a) Hawaiian High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: Hawaiian High dominates North Pacific weather.
119. Which anticyclone affects Indian monsoon onset?
a) Mascarene High ✅
b) Azores High
c) Siberian High
d) Icelandic Low
Explanation: Mascarene High drives southwest monsoon winds.
120. Which anticyclone affects winter monsoon in Asia?
a) Siberian High ✅
b) Azores High
c) Hawaiian High
d) Icelandic Low
Explanation: Siberian High drives northeast monsoon winds.
121. Which anticyclone affects Mediterranean climate?
a) Azores High ✅
b) Siberian High
c) Hawaiian High
d) Icelandic Low
Explanation: Azores High stabilizes Mediterranean summers.
122. Which anticyclone affects desert climates?
a) Subtropical High ✅
b) Polar High
c) Equatorial Low
d) Subpolar Low
Explanation: Subtropical highs create arid deserts.
123. Which anticyclone affects polar regions?
a) Polar High ✅
b) Subtropical High
c) Equatorial Low
d) Subpolar Low
Explanation: Polar highs dominate polar climates.
124. Which anticyclone affects South Indian Ocean?
a) Mascarene High ✅
b) Azores High
c) Siberian High
d) Hawaiian High
Explanation: Mascarene High influences Indian Ocean circulation.
125. Which anticyclone affects South Atlantic Ocean?
a) St. Helena High ✅
b) Azores High
c) Siberian High
d) Hawaiian High
Explanation: St. Helena High stabilizes South Atlantic weather.
126. Which scale measures hurricane intensity?
a) Saffir‑Simpson scale ✅
b) Fujita scale
c) Beaufort scale
d) Richter scale
Explanation: Saffir‑Simpson scale measures hurricane strength.
127. How many categories are in the Saffir‑Simpson scale?
a) 5 ✅
b) 3
c) 7
d) 10
Explanation: Hurricanes are classified into 5 categories.
128. What is the wind speed of Category 5 hurricane?
a) > 252 km/h ✅
b) 150 km/h
c) 200 km/h
d) 100 km/h
Explanation: Category 5 hurricanes exceed 252 km/h winds.
129. Which scale measures tornado intensity?
a) Fujita scale ✅
b) Saffir‑Simpson scale
c) Beaufort scale
d) Richter scale
Explanation: Fujita scale measures tornado strength.
130. What is the strongest category on Fujita scale?
a) F5 ✅
b) F1
c) F2
d) F3
Explanation: F5 tornadoes are the most destructive.
131. What is the wind speed of F5 tornadoes?
a) > 400 km/h ✅
b) 200 km/h
c) 300 km/h
d) 100 km/h
Explanation: F5 tornadoes exceed 400 km/h winds.
132. Which scale measures wind force at sea?
a) Beaufort scale ✅
b) Fujita scale
c) Saffir‑Simpson scale
d) Richter scale
Explanation: Beaufort scale measures wind force at sea.
133. How many levels are in Beaufort scale?
a) 12 ✅
b) 5
c) 7
d) 10
Explanation: Beaufort scale has 12 levels of wind force.
134. What is Beaufort scale level for calm?
a) 0 ✅
b) 1
c) 2
d) 3
Explanation: Level 0 represents calm conditions.
135. What is Beaufort scale level for hurricane force?
a) 12 ✅
b) 10
c) 8
d) 6
Explanation: Level 12 represents hurricane force winds.
136. Which instrument measures atmospheric pressure?
a) Barometer ✅
b) Hygrometer
c) Rain gauge
d) Thermometer
Explanation: Barometer measures air pressure.
137. Which instrument measures altitude using pressure?
a) Altimeter ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Altimeter calculates altitude from pressure.
138. Which instrument measures wind speed?
a) Anemometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Anemometer records wind velocity.
139. Which instrument measures wind direction?
a) Wind vane ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Wind vane shows wind direction.
140. Which instrument measures humidity?
a) Hygrometer ✅
b) Barometer
c) Rain gauge
d) Thermometer
Explanation: Hygrometer measures moisture content.
141. Which instrument measures rainfall?
a) Rain gauge ✅
b) Barometer
c) Hygrometer
d) Thermometer
Explanation: Rain gauge records precipitation.
142. Which instrument measures sunshine duration?
a) Campbell‑Stokes recorder ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Campbell‑Stokes recorder measures hours of sunshine.
143. Which instrument measures solar radiation?
a) Pyranometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Pyranometer measures solar radiation intensity.
144. Which instrument measures evaporation?
a) Atmometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Atmometer measures evaporation rates.
145. Which instrument measures cloud height?
a) Ceilometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Ceilometer measures cloud base altitude.
146. Which instrument measures upper air conditions?
a) Radiosonde ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Radiosonde records temperature, pressure, humidity aloft.
147. Which instrument measures visibility?
a) Transmissometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Transmissometer measures atmospheric visibility.
148. Which instrument measures ozone concentration?
a) Dobson spectrophotometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Dobson spectrophotometer measures ozone levels.
149. Which instrument measures greenhouse gases?
a) Infrared gas analyzer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Infrared gas analyzer detects CO₂ and methane.
150. Which instrument measures atmospheric particles?
a) Nephelometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Nephelometer measures aerosols and fog density.
151. Which factor affects aviation safety most?
a) Wind shear ✅
b) Rainfall
c) Earthquakes
d) Volcanoes
Explanation: Sudden changes in wind speed/direction cause turbulence.
152. Which factor affects aircraft fuel efficiency?
a) Jet streams ✅
b) Rainfall
c) Earthquakes
d) Volcanoes
Explanation: Aircraft use jet streams to save fuel and time.
153. Which factor affects agriculture most in South Asia?
a) Monsoon rainfall ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Monsoon rainfall determines crop success.
154. Which factor damages crops in deserts?
a) Hot winds (loo) ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Hot winds like loo damage crops in North India.
155. Which factor affects fishing seasons?
a) Monsoon winds ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Monsoon winds influence fishing activities.
156. Which factor disrupts shipping routes?
a) Cyclones ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Cyclones disrupt shipping and ports.
157. Which factor affects tourism most?
a) Climate winds ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Climate and wind systems influence tourist activities.
158. Which factor affects wind energy most?
a) Wind speed ✅
b) Rainfall
c) Earthquakes
d) Volcanoes
Explanation: Wind turbines depend on wind velocity.
159. Which factor affects solar power most?
a) Sunshine duration ✅
b) Wind speed
c) Earthquakes
d) Volcanoes
Explanation: Solar power depends on hours of sunshine.
160. Which factor affects hydropower most?
a) Rainfall ✅
b) Wind speed
c) Earthquakes
d) Volcanoes
Explanation: Hydropower depends on rainfall and river flow.
161. Which factor affects communication most?
a) Ionosphere ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Ionosphere reflects radio waves for communication.
162. Which factor affects forecasting most?
a) Pressure changes ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Pressure variations are key to weather forecasting.
163. Which factor affects climate zones most?
a) Latitude ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Latitude determines solar radiation and climate zones.
164. Which factor fuels cyclones most?
a) Warm ocean ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Warm ocean waters fuel tropical cyclones.
165. Which factor causes droughts most?
a) Lack of rainfall ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Droughts occur due to insufficient rainfall.
166. Which factor causes floods most?
a) Heavy rainfall ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Floods occur due to excessive rainfall.
167. Which factor causes heat waves most?
a) High pressure ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: High pressure systems trap heat, causing heat waves.
168. Which factor causes cold waves most?
a) Polar winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Polar winds bring extreme cold.
169. Which factor causes thunderstorms most?
a) Convection ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Rising warm air causes thunderstorms.
170. Which factor causes hailstorms most?
a) Strong updrafts ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Strong updrafts in clouds form hailstones.
171. Which factor causes blizzards most?
a) Polar winds ✅
b) Trade winds
c) Westerlies
d) Monsoons
Explanation: Polar winds with snow cause blizzards.
172. Which factor causes sandstorms most?
a) Strong desert winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Strong winds lift sand in deserts.
173. Which factor causes dust storms most?
a) Strong winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Strong winds lift dust particles.
174. Which factor causes smog most?
a) Pollution + calm winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Pollution trapped by calm winds forms smog.
175. Which factor causes fog most?
a) Cooling + condensation ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Fog forms when air cools and condenses near surface.
176. Which cyclone struck Bangladesh in 1970?
a) Cyclone Bhola ✅
b) Cyclone Sidr
c) Cyclone Amphan
d) Cyclone Fani
Explanation: Cyclone Bhola was one of the deadliest cyclones in history.
177. Which cyclone struck Odisha in 1999?
a) Odisha Super Cyclone ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Odisha Super Cyclone devastated eastern India.
178. Which cyclone struck Bay of Bengal in 2020?
a) Cyclone Amphan ✅
b) Cyclone Sidr
c) Cyclone Bhola
d) Cyclone Fani
Explanation: Cyclone Amphan caused severe damage in India and Bangladesh.
179. Which cyclone struck Bay of Bengal in 2019?
a) Cyclone Fani ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Fani struck Odisha in 2019.
180. Which cyclone struck Bangladesh in 2007?
a) Cyclone Sidr ✅
b) Cyclone Bhola
c) Cyclone Amphan
d) Cyclone Fani
Explanation: Cyclone Sidr caused widespread destruction in Bangladesh.
181. Which cyclone struck Myanmar in 2008?
a) Cyclone Nargis ✅
b) Cyclone Bhola
c) Cyclone Amphan
d) Cyclone Sidr
Explanation: Cyclone Nargis devastated Myanmar in 2008.
182. Which cyclone struck Arabian Sea in 2021?
a) Cyclone Tauktae ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Tauktae struck western India in 2021.
183. Which cyclone struck Bay of Bengal in 2021?
a) Cyclone Yaas ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Yaas struck Odisha and West Bengal in 2021.
184. Which cyclone struck Bay of Bengal in 2022?
a) Cyclone Asani ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Asani struck eastern India in 2022.
185. Which cyclone struck Mozambique in 2019?
a) Cyclone Idai ✅
b) Cyclone Amphan
c) Cyclone Sidr
d) Cyclone Bhola
Explanation: Cyclone Idai devastated Mozambique in 2019.
186. Which tornado struck USA in 1925?
a) Tri‑State Tornado ✅
b) Joplin Tornado
c) Bridge Creek‑Moore Tornado
d) Super Outbreak
Explanation: Tri‑State Tornado was the deadliest in US history.
187. Which tornado struck USA in 2011?
a) Joplin Tornado ✅
b) Tri‑State Tornado
c) Bridge Creek‑Moore Tornado
d) Super Outbreak
Explanation: Joplin Tornado killed over 150 people in Missouri.
188. Which tornado struck Oklahoma in 1999?
a) Bridge Creek‑Moore Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Super Outbreak
Explanation: Bridge Creek‑Moore Tornado had record wind speeds.
189. Which tornado outbreak struck USA in 2011?
a) Super Outbreak ✅
b) Dust Bowl
c) Hurricane Katrina
d) Cyclone Amphan
Explanation: The 2011 Super Outbreak was one of the largest tornado events.
190. Which tornado struck Bangladesh in 1989?
a) Daulatpur–Saturia Tornado ✅
b) Tri‑State Tornado
c) Joplin Tornado
d) Bridge Creek‑Moore Tornado
Explanation: Daulatpur–Saturia Tornado was the deadliest tornado worldwide.
191. Which smog event struck London in 1952?
a) Great Smog ✅
b) Dust Bowl
c) Super Outbreak
d) Cyclone Amphan
Explanation: Great Smog of London killed thousands in 1952.
192. Which smog event struck Los Angeles in 1940s?
a) Photochemical smog ✅
b) Great Smog
c) Dust Bowl
d) Super Outbreak
Explanation: LA suffered photochemical smog due to vehicle emissions.
193. Which drought event struck USA in 1930s?
a) Dust Bowl ✅
b) Great Smog
c) Super Outbreak
d) Cyclone Amphan
Explanation: Dust Bowl was a drought and dust storm disaster.
194. Which forecasting milestone began in 1950s?
a) Numerical weather prediction ✅
b) Satellite forecasting
c) Radar forecasting
d) Cloud seeding
Explanation: Numerical models began in 1950s for forecasting.
195. Which forecasting milestone began in 1960s?
a) Satellite forecasting ✅
b) Numerical forecasting
c) Radar forecasting
d) Cloud seeding
Explanation: Satellites revolutionized weather forecasting.
196. Which forecasting milestone began in 1940s?
a) Radar forecasting ✅
b) Satellite forecasting
c) Numerical forecasting
d) Cloud seeding
Explanation: Radar was first used in 1940s for weather detection.
197. Which forecasting milestone began in 1970s?
a) Supercomputers ✅
b) Radar forecasting
c) Satellite forecasting
d) Cloud seeding
Explanation: Supercomputers improved weather forecasting in 1970s.
198. Which forecasting milestone began in 1980s?
a) Climate models ✅
b) Radar forecasting
c) Satellite forecasting
d) Cloud seeding
Explanation: Climate models developed in 1980s for long‑term trends.
199. Which forecasting milestone began in 1990s?
a) Doppler radar ✅
b) Satellite forecasting
c) Numerical forecasting
d) Cloud seeding
Explanation: Doppler radar improved storm tracking in 1990s.
200. Which forecasting milestone began in 2010s?
a) AI forecasting ✅
b) Satellite forecasting
c) Numerical forecasting
d) Cloud seeding
Explanation: Artificial intelligence began assisting forecasts in 2010s.
201. Which event weakens Indian monsoon rainfall?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño warms Pacific waters, reducing Indian monsoon rains.
202. Which event strengthens Indian monsoon rainfall?
a) La Niña ✅
b) El Niño
c) Polar vortex
d) Jet stream shift
Explanation: La Niña cools Pacific waters, enhancing Indian monsoon rains.
203. Which event caused drought in Australia in 1982–83?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño disrupted rainfall, causing severe drought.
204. Which event caused floods in Australia in 2010–11?
a) La Niña ✅
b) El Niño
c) Polar vortex
d) Jet stream shift
Explanation: La Niña increased rainfall, causing floods.
205. Which event caused drought in Africa in 1970s?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño disrupted African rainfall patterns.
206. Which event caused floods in South America in 1997–98?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño caused heavy rainfall in South America.
207. Which event caused cold winters in USA in 2013–14?
a) Polar vortex ✅
b) El Niño
c) La Niña
d) Jet stream shift
Explanation: Polar vortex brought extreme cold to USA.
208. Which event caused heatwaves in Europe in 2003?
a) Jet stream shift ✅
b) El Niño
c) La Niña
d) Polar vortex
Explanation: Jet stream shift caused prolonged European heatwaves.
209. Which event caused drought in California in 2012–16?
a) Jet stream shift ✅
b) El Niño
c) La Niña
d) Polar vortex
Explanation: Jet stream shift blocked rainfall in California.
210. Which event caused floods in Pakistan in 2010?
a) Monsoon intensification ✅
b) El Niño
c) La Niña
d) Polar vortex
Explanation: Strong monsoon rains caused Pakistan floods.
211. Which event caused drought in India in 2009?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño weakened Indian monsoon in 2009.
212. Which event caused floods in India in 2013?
a) Monsoon intensification ✅
b) El Niño
c) La Niña
d) Polar vortex
Explanation: Heavy monsoon rains caused Uttarakhand floods.
213. Which event caused drought in Brazil in 2014–15?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño reduced rainfall in Brazil.
214. Which event caused floods in Peru in 2017?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño caused torrential rains in Peru.
215. Which event caused drought in East Africa in 2011?
a) La Niña ✅
b) El Niño
c) Polar vortex
d) Jet stream shift
Explanation: La Niña reduced rainfall in East Africa.
216. Which event caused floods in East Africa in 1997–98?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño caused heavy rains in East Africa.
217. Which event caused drought in Indonesia in 2015?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño reduced rainfall in Indonesia.
218. Which event caused floods in Indonesia in 2010?
a) La Niña ✅
b) El Niño
c) Polar vortex
d) Jet stream shift
Explanation: La Niña increased rainfall in Indonesia.
219. Which event caused drought in Philippines in 1992?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño reduced rainfall in Philippines.
220. Which event caused floods in Philippines in 2010?
a) La Niña ✅
b) El Niño
c) Polar vortex
d) Jet stream shift
Explanation: La Niña increased rainfall in Philippines.
221. Which event caused drought in China in 1994?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño disrupted rainfall in China.
222. Which event caused floods in China in 1998?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño caused heavy floods in China.
223. Which event caused drought in Japan in 1994?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño reduced rainfall in Japan.
224. Which event caused floods in Japan in 2018?
a) Jet stream shift ✅
b) El Niño
c) La Niña
d) Polar vortex
Explanation: Jet stream shift caused torrential rains in Japan.
225. Which event caused drought in Sahel region in 1970s?
a) El Niño ✅
b) La Niña
c) Polar vortex
d) Jet stream shift
Explanation: El Niño disrupted rainfall, causing Sahel drought.
226. Which factor affects aviation safety most?
a) Wind shear ✅
b) Rainfall
c) Earthquakes
d) Volcanoes
Explanation: Sudden changes in wind speed/direction cause turbulence.
227. Which factor affects aircraft fuel efficiency?
a) Jet streams ✅
b) Rainfall
c) Earthquakes
d) Volcanoes
Explanation: Aircraft use jet streams to save fuel and time.
228. Which factor affects agriculture most in South Asia?
a) Monsoon rainfall ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Monsoon rainfall determines crop success.
229. Which factor damages crops in deserts?
a) Hot winds (loo) ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Hot winds like loo damage crops in North India.
230. Which factor affects fishing seasons?
a) Monsoon winds ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Monsoon winds influence fishing activities.
231. Which factor disrupts shipping routes?
a) Cyclones ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Cyclones disrupt shipping and ports.
232. Which factor affects tourism most?
a) Climate winds ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Climate and wind systems influence tourist activities.
233. Which factor affects wind energy most?
a) Wind speed ✅
b) Rainfall
c) Earthquakes
d) Volcanoes
Explanation: Wind turbines depend on wind velocity.
234. Which factor affects solar power most?
a) Sunshine duration ✅
b) Wind speed
c) Earthquakes
d) Volcanoes
Explanation: Solar power depends on hours of sunshine.
235. Which factor affects hydropower most?
a) Rainfall ✅
b) Wind speed
c) Earthquakes
d) Volcanoes
Explanation: Hydropower depends on rainfall and river flow.
236. Which factor affects communication most?
a) Ionosphere ✅
b) Jet streams
c) Earthquakes
d) Volcanoes
Explanation: Ionosphere reflects radio waves for communication.
237. Which factor affects forecasting most?
a) Pressure changes ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Pressure variations are key to weather forecasting.
238. Which factor affects climate zones most?
a) Latitude ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Latitude determines solar radiation and climate zones.
239. Which factor affects jet streams most?
a) Temperature gradient ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Jet streams form due to temperature differences.
240. Which factor fuels cyclones most?
a) Warm ocean ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Warm ocean waters fuel tropical cyclones.
241. Which factor causes droughts most?
a) Lack of rainfall ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Droughts occur due to insufficient rainfall.
242. Which factor causes floods most?
a) Heavy rainfall ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Floods occur due to excessive rainfall.
243. Which factor causes heat waves most?
a) High pressure ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: High pressure systems trap heat, causing heat waves.
244. Which factor causes cold waves most?
a) Polar winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Polar winds bring extreme cold.
245. Which factor causes thunderstorms most?
a) Convection ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Rising warm air causes thunderstorms.
246. Which factor causes hailstorms most?
a) Strong updrafts ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Strong updrafts in clouds form hailstones.
247. Which factor causes blizzards most?
a) Polar winds ✅
b) Trade winds
c) Westerlies
d) Monsoons
Explanation: Polar winds with snow cause blizzards.
248. Which factor causes sandstorms most?
a) Strong desert winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Strong winds lift sand in deserts.
249. Which factor causes dust storms most?
a) Strong winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Strong winds lift dust particles.
250. Which factor causes smog most?
a) Pollution + calm winds ✅
b) Earthquakes
c) Volcanoes
d) Tides
Explanation: Pollution trapped by calm winds forms smog.
251. Which system brings clear skies?
a) Anticyclone ✅
b) Cyclone
c) Tornado
d) Monsoon
Explanation: Anticyclones are high‑pressure systems with descending air.
252. Which system brings clouds and rain?
a) Cyclone ✅
b) Anticyclone
c) Tornado
d) Monsoon
Explanation: Cyclones are low‑pressure systems with rising air.
253. Which cyclone occurs in tropics?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Tropical cyclones form over warm tropical oceans.
254. Which cyclone occurs in mid‑latitudes?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Temperate cyclones form along polar front.
255. Which cyclone is small and violent?
a) Tornado ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Tornadoes are intense, small‑scale rotating storms.
256. Which cyclone has an eye and eyewall?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Tropical cyclones have a calm eye and violent eyewall.
257. Which cyclone has warm and cold fronts?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Temperate cyclones develop fronts along polar boundary.
258. Which cyclone is measured by Saffir‑Simpson scale?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Saffir‑Simpson scale measures hurricane intensity.
259. Which cyclone is measured by Fujita scale?
a) Tornado ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Fujita scale measures tornado strength.
260. Which cyclone is measured by Beaufort scale?
a) Wind force at sea ✅
b) Tornado
c) Temperate cyclone
d) Anticyclone
Explanation: Beaufort scale measures wind force at sea.
261. Which cyclone is called hurricane in Atlantic?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Hurricanes are tropical cyclones in Atlantic.
262. Which cyclone is called typhoon in Pacific?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Typhoons are tropical cyclones in Pacific.
263. Which cyclone is called willy‑willy in Australia?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Willy‑willy is a tropical cyclone in Australia.
264. Which cyclone is called bagyo in Philippines?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Bagyo is a tropical cyclone in Philippines.
265. Which cyclone is also called nor’easter in USA?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Nor’easter is a temperate cyclone in USA.
266. Which cyclone is also called blizzard in Canada?
a) Snowstorm ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Blizzard is a snowstorm with strong winds.
267. Which cyclone is also called dust devil?
a) Local whirlwind ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Dust devils are small whirlwinds lifting dust.
268. Which cyclone is also called twister?
a) Tornado ✅
b) Tropical cyclone
c) Temperate cyclone
d) Anticyclone
Explanation: Tornadoes are also called twisters.
269. Which cyclone is also called superstorm in USA?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Superstorms are large temperate cyclones.
270. Which cyclone is also called polar vortex?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Polar vortex is a temperate cyclone in polar regions.
271. Which cyclone is also called extratropical cyclone?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Temperate cyclones are also called extratropical.
272. Which cyclone is also called mid‑latitude cyclone?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Temperate cyclones occur in mid‑latitudes.
273. Which cyclone is also called frontal cyclone?
a) Temperate cyclone ✅
b) Tropical cyclone
c) Tornado
d) Anticyclone
Explanation: Temperate cyclones form along fronts.
274. Which cyclone is also called depression in India?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Tropical cyclones are called depressions in India.
275. Which cyclone is also called typhoon in Japan?
a) Tropical cyclone ✅
b) Temperate cyclone
c) Tornado
d) Anticyclone
Explanation: Typhoons are tropical cyclones in Japan.
276. What is the average sea‑level pressure?
a) 1013 mb ✅
b) 500 mb
c) 2000 mb
d) 100 mb
Explanation: Standard sea‑level pressure is 1013 millibars.
277. What is the SI unit of pressure?
a) Pascal ✅
b) Millibar
c) Newton
d) Joule
Explanation: Pressure is measured in Pascals (Pa).
278. What is 1 atmosphere equal to?
a) 101,325 Pa ✅
b) 1000 Pa
c) 500 Pa
d) 200 Pa
Explanation: 1 atm = 101,325 Pascals = 1013 mb.
279. Which instrument measures pressure at sea level?
a) Mercury barometer ✅
b) Aneroid barometer
c) Hygrometer
d) Rain gauge
Explanation: Mercury barometer is the classic instrument.
280. Which instrument measures pressure without liquid?
a) Aneroid barometer ✅
b) Mercury barometer
c) Hygrometer
d) Rain gauge
Explanation: Aneroid barometer uses a sealed metal chamber.
281. Which instrument measures altitude using pressure?
a) Altimeter ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Altimeter calculates altitude from air pressure.
282. Which instrument measures wind speed?
a) Anemometer ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Anemometer records wind velocity.
283. Which instrument measures wind direction?
a) Wind vane ✅
b) Barometer
c) Hygrometer
d) Rain gauge
Explanation: Wind vane shows wind direction.
284. Which scale measures hurricane intensity?
a) Saffir‑Simpson scale ✅
b) Fujita scale
c) Beaufort scale
d) Richter scale
Explanation: Saffir‑Simpson scale measures hurricane strength.
285. Which scale measures tornado intensity?
a) Fujita scale ✅
b) Saffir‑Simpson scale
c) Beaufort scale
d) Richter scale
Explanation: Fujita scale measures tornado strength.
286. Which scale measures wind force at sea?
a) Beaufort scale ✅
b) Fujita scale
c) Saffir‑Simpson scale
d) Richter scale
Explanation: Beaufort scale measures wind force at sea.
287. Which belt is called doldrums?
a) Equatorial low ✅
b) Subtropical high
c) Polar high
d) Subpolar low
Explanation: Doldrums are calm equatorial low pressure zones.
288. Which belt is called horse latitudes?
a) Subtropical high ✅
b) Equatorial low
c) Polar high
d) Subpolar low
Explanation: Horse latitudes are calm subtropical highs.
289. Which winds converge at equator?
a) Trade winds ✅
b) Westerlies
c) Polar easterlies
d) Monsoons
Explanation: Trade winds converge at equatorial low.
290. Which winds dominate mid‑latitudes?
a) Westerlies ✅
b) Trade winds
c) Polar easterlies
d) Monsoons
Explanation: Westerlies dominate temperate zones.
291. Which winds dominate polar regions?
a) Polar easterlies ✅
b) Westerlies
c) Trade winds
d) Monsoons
Explanation: Polar easterlies dominate polar climates.
292. Which winds are seasonal?
a) Monsoons ✅
b) Trade winds
c) Westerlies
d) Polar easterlies
Explanation: Monsoons reverse direction seasonally.
293. Which winds are strongest aloft?
a) Jet streams ✅
b) Trade winds
c) Westerlies
d) Monsoons
Explanation: Jet streams are fast winds near tropopause.
294. Which winds are strongest near surface?
a) Trade winds ✅
b) Jet streams
c) Westerlies
d) Monsoons
Explanation: Trade winds dominate surface tropical circulation.
295. Which winds influence Indian agriculture?
a) Monsoons ✅
b) Trade winds
c) Westerlies
d) Polar easterlies
Explanation: Indian agriculture depends on monsoon rainfall.
296. Which winds influence European climate?
a) Westerlies ✅
b) Trade winds
c) Monsoons
d) Polar easterlies
Explanation: Westerlies bring rainfall to Europe.
297. Which winds influence USA winter storms?
a) Polar jet ✅
b) Trade winds
c) Monsoons
d) Polar easterlies
Explanation: Polar jet drives USA winter weather.
298. Which winds influence tropical cyclones?
a) Trade winds ✅
b) Westerlies
c) Monsoons
d) Polar easterlies
Explanation: Trade winds steer tropical cyclones.
299. Which winds influence temperate cyclones?
a) Westerlies ✅
b) Trade winds
c) Monsoons
d) Polar easterlies
Explanation: Westerlies dominate temperate depressions.
300. Which winds influence blizzards?
a) Polar winds ✅
b) Trade winds
c) Westerlies
d) Monsoons
Explanation: Polar winds with snow cause blizzards.
Post a Comment
Post a Comment