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 rock is formed from the cooling and solidification of molten rock?
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Igneous
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Sedimentary
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Metamorphic
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Fossils
A
Correct answer
Explanation
Igneous rocks are formed from the cooling and solidification of molten rock.
Which type of rock is formed from the accumulation and cementation of sediments?
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Igneous
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Sedimentary
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Metamorphic
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Fossils
B
Correct answer
Explanation
Sedimentary rocks are formed from the accumulation and cementation of sediments.
Which type of rock is formed from the alteration of existing rocks due to heat, pressure, or chemical reactions?
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Igneous
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Sedimentary
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Metamorphic
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Fossils
C
Correct answer
Explanation
Metamorphic rocks are formed from the alteration of existing rocks due to heat, pressure, or chemical reactions.
What is the process by which rocks are broken down into smaller pieces?
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Volcanism
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Erosion
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Weathering
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Metamorphism
C
Correct answer
Explanation
Weathering is the process by which rocks are broken down into smaller pieces.
Which process is responsible for the formation of fossils?
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Volcanism
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Erosion
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Weathering
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Metamorphism
D
Correct answer
Explanation
Metamorphism is the process by which fossils are formed.
Which layer of Earth's geosphere is composed primarily of solid rock?
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Crust
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Mantle
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Core
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Lithosphere
A
Correct answer
Explanation
The crust is the outermost layer of Earth's geosphere, consisting of solid rock and soil.
What is the process by which rocks are formed from the cooling and solidification of molten rock?
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Volcanism
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Erosion
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Weathering
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Metamorphism
A
Correct answer
Explanation
Volcanism is the process by which molten rock from the mantle rises to the surface.
What is the most common type of meteor?
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Stony
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Iron
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Stony-iron
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Glassy
A
Correct answer
Explanation
Stony meteorites are the most common type, accounting for about 90% of all meteorites that fall to Earth.
What is the composition of most meteors?
C
Correct answer
Explanation
Most meteors are composed of stone, which is a mixture of minerals and metals.
Which of the following is NOT a common type of lake formed by glacial activity?
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Oxbow Lake
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Crater Lake
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Glacial Lake
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Moraine Lake
A
Correct answer
Explanation
Oxbow lakes are formed by the meandering of rivers, not by glacial activity.
Which of the following is NOT a common type of lake formed by volcanic activity?
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Oxbow Lake
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Crater Lake
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Caldera Lake
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Maar Lake
A
Correct answer
Explanation
Oxbow lakes are formed by the meandering of rivers, not by volcanic activity.
Which type of volcano is characterized by a steep-sided cone shape and frequent, explosive eruptions?
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Shield volcano
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Cinder cone volcano
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Composite volcano
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Caldera volcano
C
Correct answer
Explanation
Composite volcanoes, also known as stratovolcanoes, are known for their steep-sided cone shape and frequent, explosive eruptions due to the accumulation of alternating layers of lava and ash.
What is the term for a large, bowl-shaped depression formed by the collapse of a volcano's summit?
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Crater
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Caldera
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Fumarole
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Lava dome
B
Correct answer
Explanation
A caldera is a large, basin-shaped depression formed when the roof of a magma chamber collapses after a volcanic eruption.
Which type of volcanic eruption is characterized by the emission of large volumes of low-viscosity lava?
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Pelean eruption
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Strombolian eruption
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Vulcanian eruption
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Hawaiian eruption
D
Correct answer
Explanation
Hawaiian eruptions are characterized by the emission of large volumes of low-viscosity lava, creating broad, gently sloping shield volcanoes.
What is the term for a vent or opening in the Earth's crust through which volcanic gases and vapors are released?
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Fumarole
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Geyser
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Hot spring
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Mud pot
A
Correct answer
Explanation
Fumaroles are vents or openings in the Earth's crust that release volcanic gases and vapors, often accompanied by sulfurous odors.