Geography ยท Science General
Rocks and Earth Materials
1,176 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
Which type of island is formed by the accumulation of sediment and organic matter over time?
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Continental Island
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Volcanic Island
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Barrier Island
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Artificial Island
C
Correct answer
Explanation
Barrier islands are formed by the accumulation of sediment and organic matter.
Which of the following is a type of metamorphic rock found in the Himalayas?
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Gneiss
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Schist
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Marble
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Quartzite
A
Correct answer
Explanation
Gneiss is a type of metamorphic rock found in the Himalayas, formed by the transformation of igneous or sedimentary rocks under high temperature and pressure.
Which of the following is a type of sedimentary rock found in the Vindhyan Supergroup?
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Sandstone
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Limestone
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Shale
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All of the above
D
Correct answer
Explanation
Sandstone, limestone, and shale are all types of sedimentary rocks found in the Vindhyan Supergroup.
Which of the following is a type of igneous rock found in the Rajmahal Hills?
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Basalt
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Granite
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Rhyolite
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Andesite
A
Correct answer
Explanation
Basalt is a type of igneous rock found in the Rajmahal Hills.
Which of the following is NOT a common type of mineral deposit?
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Hydrothermal
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Sedimentary
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Igneous
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Metamorphic
C
Correct answer
Explanation
Igneous rocks are not typically associated with the formation of mineral deposits, as they are formed from the cooling and solidification of molten rock.
What is the primary factor that controls the formation of hydrothermal mineral deposits?
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Temperature
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Pressure
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pH
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Fluid composition
D
Correct answer
Explanation
The composition of the hydrothermal fluid, including its temperature, pressure, pH, and dissolved minerals, plays a crucial role in the formation of hydrothermal mineral deposits.
What are thermal springs?
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Natural springs with elevated water temperatures
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Springs created by human activity
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Springs found in volcanic regions
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Springs with high mineral content
A
Correct answer
Explanation
Thermal springs are natural springs with water temperatures significantly higher than the surrounding environment, typically above 25 degrees Celsius.
Which of the following factors can influence the chemical composition of glacial meltwater?
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Temperature
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pH
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Rock type
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All of the above
D
Correct answer
Explanation
Temperature, pH, and rock type can all influence the chemical composition of glacial meltwater.
What is the Rosetta Stone made of?
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Granite
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Limestone
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Basalt
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Sandstone
C
Correct answer
Explanation
The Rosetta Stone is made of basalt, a dark, volcanic rock.
Which of the following is NOT a common type of karst cave?
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Solution caves
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Collapse caves
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Glacial caves
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Sea caves
C
Correct answer
Explanation
Glacial caves are not a common type of karst cave, as they are typically associated with non-karst environments.
Which of the following is NOT a common type of karst spring?
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Vauclusian springs
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Exsurgence springs
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Resurgence springs
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Thermal springs
D
Correct answer
Explanation
Thermal springs are not a common type of karst spring, as they are typically associated with non-karst environments.
Which of the following is NOT a common type of karst sinkhole?
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Solution sinkholes
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Collapse sinkholes
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Cover-collapse sinkholes
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Glacial sinkholes
D
Correct answer
Explanation
Glacial sinkholes are not a common type of karst sinkhole, as they are typically associated with non-karst environments.
Which of the following is NOT a type of weathering process?
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Physical weathering
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Chemical weathering
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Biological weathering
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Metamorphism
D
Correct answer
Explanation
Metamorphism is a geological process that involves the transformation of rocks under the influence of high temperature and pressure, while physical, chemical, and biological weathering are all processes that break down rocks and minerals at or near the Earth's surface.
The process by which rocks and minerals are broken down into smaller particles by the action of living organisms is known as:
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Physical weathering
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Chemical weathering
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Biological weathering
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Metamorphism
C
Correct answer
Explanation
Biological weathering is the process by which rocks and minerals are broken down into smaller particles by the action of living organisms, such as plants, animals, and microorganisms.
The Deccan Plateau is formed by the:
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Lava flows
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Sedimentary rocks
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Metamorphic rocks
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Igneous rocks
A
Correct answer
Explanation
The Deccan Plateau is formed by lava flows that erupted from volcanoes millions of years ago.