Rock

200 MCQs on ROCK


Q1. Rocks are aggregates of:
(A) Metals
(B) Minerals ✅
(C) Fossils
(D) Soil
Explanation: Rocks are naturally occurring aggregates of minerals.

Q2. Which of the following is a primary rock?
(A) Sandstone
(B) Granite ✅
(C) Marble
(D) Slate
Explanation: Granite is igneous, formed directly from cooling magma.

Q3. Fossils are most commonly found in:
(A) Igneous rocks
(B) Sedimentary rocks ✅
(C) Metamorphic rocks
(D) Volcanic rocks
Explanation: Sedimentary rocks preserve remains of plants/animals.

Q4. Marble is formed from:
(A) Granite
(B) Limestone ✅
(C) Sandstone
(D) Shale
Explanation: Limestone undergoes metamorphism to form marble.

Q5. Slate is formed from:
(A) Shale ✅
(B) Limestone
(C) Sandstone
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q6. Which of the following is an intrusive igneous rock?
(A) Basalt
(B) Granite ✅
(C) Obsidian
(D) Pumice
Explanation: Granite forms when magma cools slowly beneath the Earth’s surface.

Q7. Which sedimentary rock is formed mainly from calcium carbonate?
(A) Shale
(B) Limestone ✅
(C) Sandstone
(D) Conglomerate
Explanation: Limestone is composed largely of calcite.

Q8. The Deccan Traps in India are made of:
(A) Basalt ✅
(B) Granite
(C) Sandstone
(D) Marble
Explanation: Deccan Traps are extensive basaltic lava flows.

Q9. Which rock is used as raw material in cement industry?
(A) Limestone ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Limestone is a key ingredient in cement.

Q10. Igneous rocks are also called:
(A) Primary rocks ✅
(B) Secondary rocks
(C) Fossil rocks
(D) Stratified rocks
Explanation: Igneous rocks are the first to form from magma.

Q11. Sandstone is an example of:
(A) Igneous rock
(B) Sedimentary rock ✅
(C) Metamorphic rock
(D) Volcanic rock
Explanation: Sandstone is formed by compaction of sand particles.

Q12. Which rock is formed by metamorphism of limestone?
(A) Marble ✅
(B) Slate
(C) Granite
(D) Shale
Explanation: Limestone transforms into marble under heat and pressure.

Q13. Obsidian is:
(A) Sedimentary rock
(B) Igneous rock ✅
(C) Metamorphic rock
(D) Fossil rock
Explanation: Obsidian is a volcanic glass formed from rapid cooling of lava.

Q14. Coal is classified as:
(A) Igneous rock
(B) Sedimentary rock ✅
(C) Metamorphic rock
(D) Fossil fuel
Explanation: Coal is an organic sedimentary rock.

Q15. Which rock is commonly used for making statues?
(A) Marble ✅
(B) Granite
(C) Slate
(D) Sandstone
Explanation: Marble is soft enough to carve and aesthetically pleasing.

Q16. Conglomerate is a type of:
(A) Igneous rock
(B) Sedimentary rock ✅
(C) Metamorphic rock
(D) Fossil rock
Explanation: Conglomerate is formed from rounded pebbles cemented together.

Q17. Which rock is formed by cooling of lava on Earth’s surface?
(A) Granite
(B) Basalt ✅
(C) Marble
(D) Slate
Explanation: Basalt is an extrusive igneous rock.

Q18. Shale is formed from:
(A) Clay ✅
(B) Sand
(C) Limestone
(D) Granite
Explanation: Shale is a fine-grained sedimentary rock formed from clay.

Q19. Which rock is used for roofing tiles?
(A) Slate ✅
(B) Marble
(C) Granite
(D) Sandstone
Explanation: Slate splits easily into thin sheets, suitable for roofing.

Q20. The rock cycle demonstrates:
(A) Rocks are static
(B) Rocks change continuously ✅
(C) Rocks are man-made
(D) Rocks are independent of natural forces
Explanation: The rock cycle shows transformation between all rock types.

Q21. Which igneous rock is light and porous?
(A) Basalt
(B) Pumice ✅
(C) Granite
(D) Obsidian
Explanation: Pumice is formed from gas-rich lava, making it porous.

Q22. Which sedimentary rock is formed from plant remains?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Limestone
Explanation: Coal originates from compressed plant material.

Q23. Quartzite is formed from:
(A) Sandstone ✅
(B) Shale
(C) Limestone
(D) Granite
Explanation: Sandstone undergoes metamorphism to form quartzite.

Q24. Which rock is known as volcanic glass?
(A) Obsidian ✅
(B) Granite
(C) Basalt
(D) Marble
Explanation: Obsidian forms when lava cools rapidly without crystallization.

Q25. Which rock is stratified?
(A) Sedimentary ✅
(B) Igneous
(C) Metamorphic
(D) Volcanic
Explanation: Sedimentary rocks are deposited in layers (strata).

Q26. Which of the following is an extrusive igneous rock?
(A) Granite
(B) Basalt ✅
(C) Gabbro
(D) Diorite
Explanation: Basalt forms when lava cools quickly on the Earth’s surface.

Q27. Which rock is formed from compacted clay?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Granite
Explanation: Shale is a fine-grained sedimentary rock formed from clay.

Q28. Which metamorphic rock is used in flooring and roofing?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits into thin sheets, making it suitable for tiles.

Q29. Which igneous rock is glassy in texture?
(A) Obsidian ✅
(B) Granite
(C) Basalt
(D) Diorite
Explanation: Obsidian is volcanic glass formed from rapid cooling of lava.

Q30. Which sedimentary rock is formed from sand particles?
(A) Sandstone ✅
(B) Shale
(C) Limestone
(D) Conglomerate
Explanation: Sandstone is formed by compaction of sand grains.

Q31. Which rock is formed by metamorphism of sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q32. Which igneous rock is porous and light enough to float on water?
(A) Pumice ✅
(B) Basalt
(C) Granite
(D) Obsidian
Explanation: Pumice contains air bubbles, making it lightweight.

Q33. Which rock is known for containing fossils?
(A) Sedimentary ✅
(B) Igneous
(C) Metamorphic
(D) Volcanic
Explanation: Fossils are preserved in sedimentary layers.

Q34. Which metamorphic rock is formed from shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q35. Which igneous rock is coarse-grained?
(A) Granite ✅
(B) Basalt
(C) Obsidian
(D) Pumice
Explanation: Granite cools slowly underground, forming large crystals.

Q36. Which sedimentary rock is formed from chemical precipitation?
(A) Limestone ✅
(B) Sandstone
(C) Shale
(D) Conglomerate
Explanation: Limestone often forms from precipitation of calcium carbonate.

Q37. Which metamorphic rock is used in sculpture and architecture?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is valued for its beauty and ease of carving.

Q38. Which igneous rock forms the oceanic crust?
(A) Basalt ✅
(B) Granite
(C) Diorite
(D) Obsidian
Explanation: Basalt is the dominant rock of oceanic crust.

Q39. Which sedimentary rock is formed from fine mud particles?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is compacted mud/clay.

Q40. Which metamorphic rock is extremely hard and resistant?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is very hard due to recrystallized quartz.

Q41. Which igneous rock is formed from slow cooling of magma?
(A) Granite ✅
(B) Basalt
(C) Obsidian
(D) Pumice
Explanation: Granite forms deep underground with large crystals.

Q42. Which sedimentary rock is formed from rounded pebbles?
(A) Conglomerate ✅
(B) Shale
(C) Limestone
(D) Sandstone
Explanation: Conglomerate is made of cemented pebbles.

Q43. Which metamorphic rock is used for making blackboards?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits into smooth sheets, suitable for writing surfaces.

Q44. Which igneous rock is fine-grained and dark-colored?
(A) Basalt ✅
(B) Granite
(C) Diorite
(D) Obsidian
Explanation: Basalt cools quickly, forming fine grains.

Q45. Which sedimentary rock is formed from shells and skeletons?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone often originates from marine organisms.

Q46. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q47. Which igneous rock is formed from volcanic eruptions?
(A) Basalt ✅
(B) Granite
(C) Diorite
(D) Gabbro
Explanation: Basalt is extrusive, formed from lava flows.

Q48. Which sedimentary rock is formed from plant material?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Limestone
Explanation: Coal originates from compressed plant remains.

Q49. Which metamorphic rock is used in construction for durability?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is extremely hard and durable.

Q50. Which igneous rock is formed from rapid cooling of lava?
(A) Obsidian ✅
(B) Granite
(C) Basalt
(D) Diorite
Explanation: Obsidian is volcanic glass formed from rapid cooling.

Q51. Which igneous rock is commonly used for kitchen countertops?
(A) Granite ✅
(B) Basalt
(C) Obsidian
(D) Slate
Explanation: Granite is durable and aesthetically appealing, widely used in interiors.

Q52. Which sedimentary rock is formed from compacted silt?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is fine-grained, formed from silt and clay particles.

Q53. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q54. Which igneous rock is formed from volcanic eruptions?
(A) Basalt ✅
(B) Granite
(C) Diorite
(D) Gabbro
Explanation: Basalt is extrusive, formed from lava flows.

Q55. Which sedimentary rock is formed from sand grains?
(A) Sandstone ✅
(B) Shale
(C) Limestone
(D) Conglomerate
Explanation: Sandstone is formed by compaction of sand particles.

Q56. Which metamorphic rock is used for decorative purposes?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Shale
Explanation: Marble is valued for its beauty and polish.

Q57. Which igneous rock is dark-colored and fine-grained?
(A) Basalt ✅
(B) Granite
(C) Diorite
(D) Obsidian
Explanation: Basalt cools quickly, forming fine grains.

Q58. Which sedimentary rock is formed from organic matter?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Limestone
Explanation: Coal originates from compressed plant remains.

Q59. Which metamorphic rock is extremely hard and resistant?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is very hard due to recrystallized quartz.

Q60. Which igneous rock is formed from rapid cooling of lava?
(A) Obsidian ✅
(B) Granite
(C) Basalt
(D) Diorite
Explanation: Obsidian is volcanic glass formed from rapid cooling.

Q61. Which sedimentary rock is formed from shells and skeletons?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone often originates from marine organisms.

Q62. Which metamorphic rock is formed from shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q63. Which igneous rock is coarse-grained?
(A) Granite ✅
(B) Basalt
(C) Obsidian
(D) Pumice
Explanation: Granite cools slowly underground, forming large crystals.

Q64. Which sedimentary rock is formed from rounded pebbles?
(A) Conglomerate ✅
(B) Shale
(C) Limestone
(D) Sandstone
Explanation: Conglomerate is made of cemented pebbles.

Q65. Which metamorphic rock is used for making blackboards?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits into smooth sheets, suitable for writing surfaces.

Q66. Which igneous rock forms the oceanic crust?
(A) Basalt ✅
(B) Granite
(C) Diorite
(D) Obsidian
Explanation: Basalt is the dominant rock of oceanic crust.

Q67. Which sedimentary rock is formed from fine mud particles?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is compacted mud/clay.

Q68. Which metamorphic rock is used in construction for durability?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is extremely hard and durable.

Q69. Which igneous rock is used for road construction?
(A) Basalt ✅
(B) Granite
(C) Obsidian
(D) Pumice
Explanation: Basalt is tough and suitable for road metal.

Q70. Which sedimentary rock is formed from calcium carbonate?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone is composed largely of calcite.

Q71. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone undergoes metamorphism to form quartzite.

Q72. Which igneous rock is light and porous?
(A) Pumice ✅
(B) Basalt
(C) Granite
(D) Obsidian
Explanation: Pumice contains air bubbles, making it lightweight.

Q73. Which sedimentary rock is formed from plant remains?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Limestone
Explanation: Coal originates from compressed plant material.

Q74. Which metamorphic rock is used for sculpture?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is soft enough to carve and aesthetically pleasing.

Q75. Which igneous rock is formed from slow cooling of magma?
(A) Granite ✅
(B) Basalt
(C) Obsidian
(D) Pumice
Explanation: Granite forms deep underground with large crystals.

Q76. Which sedimentary rock is formed from clay particles?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is fine-grained, formed from compacted clay.

Q77. Which sedimentary rock is formed from sand grains?
(A) Sandstone ✅
(B) Shale
(C) Limestone
(D) Conglomerate
Explanation: Sandstone is formed by compaction of sand particles.

Q78. Which sedimentary rock is formed from shells and skeletons?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone often originates from marine organisms.

Q79. Which sedimentary rock is formed from rounded pebbles?
(A) Conglomerate ✅
(B) Shale
(C) Limestone
(D) Sandstone
Explanation: Conglomerate is made of cemented pebbles.

Q80. Which sedimentary rock is formed from plant remains?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Limestone
Explanation: Coal originates from compressed plant material.

Q81. Which sedimentary rock is formed from chemical precipitation?
(A) Limestone ✅
(B) Sandstone
(C) Shale
(D) Conglomerate
Explanation: Limestone often forms from precipitation of calcium carbonate.

Q82. Which sedimentary rock is organic in origin?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Coal is formed from organic plant matter.

Q83. Which sedimentary rock is used in cement industry?
(A) Limestone ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Limestone is a key ingredient in cement.

Q84. Which sedimentary rock is formed from mud particles?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is compacted mud/clay.

Q85. Which sedimentary rock is stratified?
(A) Sedimentary ✅
(B) Igneous
(C) Metamorphic
(D) Volcanic
Explanation: Sedimentary rocks are deposited in layers (strata).

Q86. Which sedimentary rock is commonly used for building?
(A) Sandstone ✅
(B) Shale
(C) Limestone
(D) Conglomerate
Explanation: Sandstone is durable and widely used in construction.

Q87. Which sedimentary rock is formed from fine silt?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is fine-grained, formed from silt and clay.

Q88. Which sedimentary rock is fossiliferous?
(A) Sedimentary ✅
(B) Igneous
(C) Metamorphic
(D) Volcanic
Explanation: Fossils are preserved in sedimentary layers.

Q89. Which sedimentary rock is formed from calcium carbonate?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone is composed largely of calcite.

Q90. Which sedimentary rock is formed from sand particles?
(A) Sandstone ✅
(B) Shale
(C) Limestone
(D) Conglomerate
Explanation: Sandstone is formed by compaction of sand grains.

Q91. Which sedimentary rock is formed from organic matter?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Limestone
Explanation: Coal originates from compressed plant remains.

Q92. Which sedimentary rock is formed from shells?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone often originates from marine organisms.

Q93. Which sedimentary rock is formed from rounded fragments?
(A) Conglomerate ✅
(B) Shale
(C) Limestone
(D) Sandstone
Explanation: Conglomerate is made of cemented rounded fragments.

Q94. Which sedimentary rock is formed from mud?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is compacted mud/clay.

Q95. Which sedimentary rock is used for making chalk?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Chalk is a form of limestone.

Q96. Which sedimentary rock is formed from plant material?
(A) Coal ✅
(B) Shale
(C) Sandstone
(D) Limestone
Explanation: Coal originates from compressed plant matter.

Q97. Which sedimentary rock is formed from chemical deposits?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone often forms from chemical precipitation.

Q98. Which sedimentary rock is formed from fine particles?
(A) Shale ✅
(B) Sandstone
(C) Limestone
(D) Conglomerate
Explanation: Shale is fine-grained, formed from silt and clay.

Q99. Which sedimentary rock is formed from sand?
(A) Sandstone ✅
(B) Shale
(C) Limestone
(D) Conglomerate
Explanation: Sandstone is formed by compaction of sand grains.

Q100. Which sedimentary rock is formed from shells and skeletons?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Limestone often originates from marine organisms.

Q101. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q102. Which metamorphic rock is formed from shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q103. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q104. Which metamorphic rock is used for sculpture?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is soft enough to carve and aesthetically pleasing.

Q105. Which metamorphic rock is extremely hard and resistant?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is very hard due to recrystallized quartz.

Q106. Which metamorphic rock is used for roofing tiles?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits easily into thin sheets, suitable for roofing.

Q107. Which metamorphic rock is formed from clay-rich shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q108. Which metamorphic rock is used for flooring?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is polished and widely used in flooring.

Q109. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q110. Which metamorphic rock is used for blackboards?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits into smooth sheets, suitable for writing surfaces.

Q111. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q112. Which metamorphic rock is formed from shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q113. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q114. Which metamorphic rock is used in construction for durability?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is extremely hard and durable.

Q115. Which metamorphic rock is used for decorative purposes?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Shale
Explanation: Marble is valued for its beauty and polish.

Q116. Which metamorphic rock is formed from clay-rich shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q117. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q118. Which metamorphic rock is used for roofing?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits easily into thin sheets, suitable for roofing.

Q119. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q120. Which metamorphic rock is extremely hard?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is very hard due to recrystallized quartz.

Q121. Which metamorphic rock is used for flooring and sculpture?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is polished and widely used in flooring and sculpture.

Q122. Which metamorphic rock is formed from shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q123. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q124. Which metamorphic rock is used for roofing tiles?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits easily into thin sheets, suitable for roofing.

Q125. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q126. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q127. Which metamorphic rock is formed from shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q128. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q129. Which metamorphic rock is used for roofing tiles?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits easily into thin sheets, suitable for roofing.

Q130. Which metamorphic rock is used for sculpture?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is soft enough to carve and aesthetically pleasing.

Q131. Which metamorphic rock is extremely hard and resistant?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is very hard due to recrystallized quartz.

Q132. Which metamorphic rock is used for blackboards?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits into smooth sheets, suitable for writing surfaces.

Q133. Which metamorphic rock is polished for flooring?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is polished and widely used in flooring.

Q134. Which metamorphic rock is formed from clay-rich shale?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Shale undergoes metamorphism to form slate.

Q135. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q136. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q137. Which metamorphic rock is used in construction for durability?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is extremely hard and durable.

Q138. Which metamorphic rock is used for roofing?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Granite
Explanation: Slate splits easily into thin sheets, suitable for roofing.

Q139. Which metamorphic rock is formed from limestone?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Limestone transforms into marble under heat and pressure.

Q140. Which metamorphic rock is formed from sandstone?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Sandstone transforms into quartzite under heat and pressure.

Q141. The rock cycle demonstrates:
(A) Rocks are static
(B) Rocks change continuously ✅
(C) Rocks are man-made
(D) Rocks are independent of natural forces
Explanation: The rock cycle shows transformation between all rock types.

Q142. Which process converts igneous rocks into sediments?
(A) Weathering ✅
(B) Melting
(C) Metamorphism
(D) Crystallization
Explanation: Weathering breaks down igneous rocks into sediments.

Q143. Which process converts sediments into sedimentary rocks?
(A) Compaction and cementation ✅
(B) Melting
(C) Cooling
(D) Crystallization
Explanation: Sediments are compacted and cemented to form sedimentary rocks.

Q144. Which process converts sedimentary rocks into metamorphic rocks?
(A) Heat and pressure ✅
(B) Cooling
(C) Weathering
(D) Melting
Explanation: Heat and pressure transform sedimentary rocks into metamorphic rocks.

Q145. Which process converts metamorphic rocks into magma?
(A) Melting ✅
(B) Cooling
(C) Weathering
(D) Cementation
Explanation: Metamorphic rocks melt to form magma.

Q146. Which process converts magma into igneous rocks?
(A) Cooling and solidification ✅
(B) Weathering
(C) Cementation
(D) Heat and pressure
Explanation: Magma cools and solidifies to form igneous rocks.

Q147. Which process converts metamorphic rocks into sediments?
(A) Weathering ✅
(B) Melting
(C) Cooling
(D) Crystallization
Explanation: Weathering breaks down metamorphic rocks into sediments.

Q148. Which process converts sedimentary rocks into magma?
(A) Melting ✅
(B) Cooling
(C) Weathering
(D) Cementation
Explanation: Sedimentary rocks melt to form magma.

Q149. Which process converts igneous rocks into metamorphic rocks?
(A) Heat and pressure ✅
(B) Cooling
(C) Weathering
(D) Cementation
Explanation: Igneous rocks undergo metamorphism under heat and pressure.

Q150. Which process converts sediments into metamorphic rocks?
(A) Compaction → Sedimentary → Heat and pressure ✅
(B) Cooling
(C) Melting
(D) Crystallization
Explanation: Sediments form sedimentary rocks, which then transform into metamorphic rocks.

Q151. The rock cycle shows that:
(A) Rocks are static
(B) Rocks change continuously ✅
(C) Rocks are artificial
(D) Rocks are independent of natural forces
Explanation: The rock cycle demonstrates transformation between igneous, sedimentary, and metamorphic rocks.

Q152. Which process breaks down rocks into smaller particles?
(A) Weathering ✅
(B) Melting
(C) Cooling
(D) Cementation
Explanation: Weathering disintegrates rocks into sediments.

Q153. Which process converts sediments into sedimentary rocks?
(A) Compaction and cementation ✅
(B) Melting
(C) Cooling
(D) Crystallization
Explanation: Sediments are compacted and cemented to form sedimentary rocks.

Q154. Which process converts sedimentary rocks into metamorphic rocks?
(A) Heat and pressure ✅
(B) Cooling
(C) Weathering
(D) Melting
Explanation: Heat and pressure transform sedimentary rocks into metamorphic rocks.

Q155. Which process converts metamorphic rocks into magma?
(A) Melting ✅
(B) Cooling
(C) Weathering
(D) Cementation
Explanation: Metamorphic rocks melt to form magma.

Q156. Which process converts magma into igneous rocks?
(A) Cooling and solidification ✅
(B) Weathering
(C) Cementation
(D) Heat and pressure
Explanation: Magma cools and solidifies to form igneous rocks.

Q157. Which process converts igneous rocks into sediments?
(A) Weathering ✅
(B) Melting
(C) Cooling
(D) Crystallization
Explanation: Weathering breaks down igneous rocks into sediments.

Q158. Which process converts metamorphic rocks into sediments?
(A) Weathering ✅
(B) Melting
(C) Cooling
(D) Cementation
Explanation: Weathering breaks down metamorphic rocks into sediments.

Q159. Which process converts sedimentary rocks into magma?
(A) Melting ✅
(B) Cooling
(C) Weathering
(D) Cementation
Explanation: Sedimentary rocks melt to form magma.

Q160. Which process converts igneous rocks into metamorphic rocks?
(A) Heat and pressure ✅
(B) Cooling
(C) Weathering
(D) Cementation
Explanation: Igneous rocks undergo metamorphism under heat and pressure.

Q161. Which rock is used as raw material in cement industry?
(A) Limestone ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Limestone is a key ingredient in cement.

Q162. Which rock is used for making statues?
(A) Marble ✅
(B) Granite
(C) Slate
(D) Sandstone
Explanation: Marble is soft enough to carve and aesthetically pleasing.

Q163. Which rock is used for road construction?
(A) Basalt ✅
(B) Granite
(C) Obsidian
(D) Pumice
Explanation: Basalt is tough and suitable for road metal.

Q164. Which rock is used for kitchen countertops?
(A) Granite ✅
(B) Basalt
(C) Obsidian
(D) Slate
Explanation: Granite is durable and aesthetically appealing.

Q165. Which rock is used for roofing tiles?
(A) Slate ✅
(B) Marble
(C) Quartzite
(D) Sandstone
Explanation: Slate splits easily into thin sheets, suitable for roofing.

Q166. Which rock is used for flooring and sculpture?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Granite
Explanation: Marble is polished and widely used in flooring and sculpture.

Q167. Which rock is used for making chalk?
(A) Limestone ✅
(B) Shale
(C) Sandstone
(D) Conglomerate
Explanation: Chalk is a form of limestone.

Q168. Which rock is used as fuel?
(A) Coal ✅
(B) Granite
(C) Slate
(D) Basalt
Explanation: Coal is an organic sedimentary rock used as fuel.

Q169. Which rock is used in glass industry?
(A) Quartz ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Quartz is a raw material for glass production.

Q170. Which rock is used in steel industry?
(A) Limestone ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Limestone is used as flux in steel production.

Q171. Which rock is used in aluminum industry?
(A) Bauxite ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Bauxite is the chief ore of aluminum.

Q172. Which rock is used in petroleum industry?
(A) Sedimentary ✅
(B) Igneous
(C) Metamorphic
(D) Volcanic
Explanation: Petroleum is found in porous sedimentary rocks.

Q173. Which rock is used in fertilizer industry?
(A) Phosphate rock ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Phosphate rock is used to produce fertilizers.

Q174. Which rock is used in construction for durability?
(A) Quartzite ✅
(B) Slate
(C) Marble
(D) Shale
Explanation: Quartzite is extremely hard and durable.

Q175. Which rock is used in cement industry?
(A) Limestone ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Limestone is a key ingredient in cement.

Q176. Which rock is used in road metal?
(A) Basalt ✅
(B) Granite
(C) Marble
(D) Limestone
Explanation: Basalt is tough and suitable for road construction.

Q177. Which rock is used in decorative purposes?
(A) Marble ✅
(B) Slate
(C) Quartzite
(D) Shale
Explanation: Marble is valued for its beauty and polish.

Q178. Which rock is used in glass making?
(A) Quartz ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Quartz is a raw material for glass production.

Q179. Which rock is used in steel industry as flux?
(A) Limestone ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Limestone is used as flux in steel production.

Q180. Which rock is used in aluminum industry?
(A) Bauxite ✅
(B) Granite
(C) Slate
(D) Shale
Explanation: Bauxite is the chief ore of aluminum.

Q181. The Deccan Traps in India are made of:
(A) Basalt ✅
(B) Granite
(C) Sandstone
(D) Marble
Explanation: Deccan Traps are extensive basaltic lava flows.

Q182. Which rock forms the Vindhyan ranges?
(A) Sandstone ✅
(B) Granite
(C) Basalt
(D) Marble
Explanation: Vindhyan ranges are mainly composed of sandstone.

Q183. Which rock is abundant in Chhattisgarh region?
(A) Limestone ✅
(B) Granite
(C) Basalt
(D) Slate
Explanation: Chhattisgarh has rich deposits of limestone.

Q184. Which rock is found in Rajmahal Hills?
(A) Basalt ✅
(B) Granite
(C) Sandstone
(D) Marble
Explanation: Rajmahal Hills are formed of basaltic lava.

Q185. Which rock is mined in Makrana, Rajasthan?
(A) Marble ✅
(B) Granite
(C) Slate
(D) Sandstone
Explanation: Makrana is famous for high-quality marble.

Q186. Which rock is found in Balaghat, Madhya Pradesh?
(A) Bauxite ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Balaghat is known for bauxite deposits.

Q187. Which rock is found in Jharia, Jharkhand?
(A) Coal ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Jharia is famous for coal fields.

Q188. Which rock is found in Kudremukh, Karnataka?
(A) Iron ore ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Kudremukh is known for iron ore deposits.

Q189. Which rock is found in Salem, Tamil Nadu?
(A) Magnesite ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Salem has magnesite deposits.

Q190. Which rock is found in Singhbhum, Jharkhand?
(A) Iron ore ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Singhbhum is rich in iron ore.

Q191. Which rock is found in Kolar, Karnataka?
(A) Gold ore ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Kolar is famous for gold mines.

Q192. Which rock is found in Sundargarh, Odisha?
(A) Manganese ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Sundargarh has manganese deposits.

Q193. Which rock is found in Bellary, Karnataka?
(A) Iron ore ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Bellary is known for iron ore mining.

Q194. Which rock is found in Neyveli, Tamil Nadu?
(A) Lignite ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Neyveli is famous for lignite deposits.

Q195. Which rock is found in Bokaro, Jharkhand?
(A) Coal ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Bokaro is a coal mining region.

Q196. Which rock is found in Koraput, Odisha?
(A) Bauxite ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Koraput is rich in bauxite deposits.

Q197. Which rock is found in Mayurbhanj, Odisha?
(A) Iron ore ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Mayurbhanj has iron ore deposits.

Q198. Which rock is found in Jodhpur, Rajasthan?
(A) Sandstone ✅
(B) Granite
(C) Slate
(D) Limestone
Explanation: Jodhpur is famous for red sandstone.

Q199. Which rock is found in Chhota Nagpur Plateau?
(A) Granite ✅
(B) Basalt
(C) Sandstone
(D) Marble
Explanation: Chhota Nagpur Plateau has extensive granite formations.

Q200. Which rock is found in Almora, Uttarakhand?
(A) Slate ✅
(B) Granite
(C) Sandstone
(D) Limestone
Explanation: Almora region is known for slate deposits.