Geography ยท Science General
Rocks and Earth Materials
1,291 Questions
Study geographical questions centered around rocks, minerals, and earth materials. The focus is on the formation and identification of igneous, sedimentary, and metamorphic rocks. These earth science topics are commonly tested in civil services and state level examinations.
Igneous rocksSedimentary rocksMetamorphic processEarth materialsGeomorphic symbols
Rocks and Earth Materials Questions
What is the name of the layer of the Earth that is composed primarily of iron and nickel?
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Continental crust
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Oceanic crust
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Mantle
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Core
D
Correct answer
Explanation
The core is the layer of the Earth that is composed primarily of iron and nickel.
Which of the following is NOT a major component of the Earth's mantle?
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Oxygen
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Silicon
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Magnesium
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Iron
A
Correct answer
Explanation
Oxygen is not a major component of the Earth's mantle, which is primarily composed of silicon, magnesium, and iron.
Which of the following is NOT a type of weathering?
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Physical weathering
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Chemical weathering
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Biological weathering
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Metamorphic weathering
D
Correct answer
Explanation
Metamorphic weathering is not a type of weathering. Metamorphism is a process that occurs when rocks are subjected to high temperatures and pressures, causing them to change their mineral composition and texture.
Which of the following is NOT a type of sedimentary rock?
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Sandstone
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Limestone
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Shale
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Metamorphic rock
D
Correct answer
Explanation
Metamorphic rock is not a type of sedimentary rock. Metamorphic rocks are formed when existing rocks are subjected to high temperatures and pressures, causing them to change their mineral composition and texture.
What is the process by which rocks are changed into new rocks with different mineral compositions and textures?
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Weathering
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Erosion
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Deposition
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Metamorphism
D
Correct answer
Explanation
Metamorphism is the process by which rocks are changed into new rocks with different mineral compositions and textures due to the action of high temperatures and pressures.
Which of the following is NOT a type of metamorphic rock?
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Slate
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Marble
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Gneiss
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Igneous rock
D
Correct answer
Explanation
Igneous rock is not a type of metamorphic rock. Igneous rocks are formed when magma or lava cools and solidifies.
What is the process by which magma or lava cools and solidifies?
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Weathering
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Erosion
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Deposition
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Igneous activity
D
Correct answer
Explanation
Igneous activity is the process by which magma or lava cools and solidifies, forming igneous rocks.
Which of the following is NOT a type of igneous rock?
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Basalt
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Granite
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Rhyolite
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Sedimentary rock
D
Correct answer
Explanation
Sedimentary rock is not a type of igneous rock. Sedimentary rocks are formed when sediments are deposited and compacted over time.
What is the process by which rocks are changed into new rocks with different mineral compositions and textures due to the action of high temperatures and pressures?
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Weathering
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Erosion
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Deposition
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Metamorphism
D
Correct answer
Explanation
Metamorphism is the process by which rocks are changed into new rocks with different mineral compositions and textures due to the action of high temperatures and pressures.
Which of the following is NOT a type of metamorphic rock?
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Slate
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Marble
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Gneiss
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Igneous rock
D
Correct answer
Explanation
Igneous rock is not a type of metamorphic rock. Igneous rocks are formed when magma or lava cools and solidifies.
What is the process by which magma or lava cools and solidifies?
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Weathering
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Erosion
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Deposition
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Igneous activity
D
Correct answer
Explanation
Igneous activity is the process by which magma or lava cools and solidifies, forming igneous rocks.
What is the main source of borates?
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Evaporite deposits
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Igneous rocks
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Metamorphic rocks
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Sedimentary rocks
A
Correct answer
Explanation
Borates are primarily obtained from evaporite deposits, formed by the evaporation of ancient seawater.
What are the four main geochemical reservoirs?
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The atmosphere, the hydrosphere, the lithosphere, and the biosphere
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The atmosphere, the hydrosphere, the mantle, and the core
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The atmosphere, the hydrosphere, the crust, and the mantle
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The atmosphere, the hydrosphere, the lithosphere, and the mantle
A
Correct answer
Explanation
The four main geochemical reservoirs are the atmosphere, the hydrosphere, the lithosphere, and the biosphere.
What is the role of humans in geochemical cycles?
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Humans have no role in geochemical cycles.
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Humans can accelerate geochemical cycles.
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Humans can slow down geochemical cycles.
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Humans can change the direction of geochemical cycles.
B
Correct answer
Explanation
Humans can accelerate geochemical cycles by burning fossil fuels, releasing greenhouse gases, and changing land use.
Which of the following is NOT a type of weathering:
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Mechanical Weathering
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Chemical Weathering
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Biological Weathering
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Metamorphic Weathering
D
Correct answer
Explanation
Metamorphic Weathering is not a type of weathering, but rather a process that occurs deep within the Earth's crust under high pressure and temperature.