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
What is the name of the process by which rocks are formed from sediments?
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Igneous
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Sedimentary
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Metamorphic
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Weathering
B
Correct answer
Explanation
Sedimentary rocks are formed from sediments.
What is the name of the process by which rocks are changed by heat and pressure?
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Igneous
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Sedimentary
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Metamorphic
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Weathering
C
Correct answer
Explanation
Metamorphic rocks are formed by heat and pressure.
What is the term for a rock that has been subjected to high pressure and temperature, causing it to recrystallize?
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Metamorphic rock
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Igneous rock
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Sedimentary rock
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Extrusive rock
A
Correct answer
Explanation
Metamorphic rocks are formed when existing rocks are subjected to high pressure and temperature, causing them to recrystallize and form new minerals.
What is the term for a fold in which the layers of rock are bent into a series of parallel, alternating arches and troughs?
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Anticline
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Syncline
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Monocline
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Dome
A
Correct answer
Explanation
An anticline is a fold in which the layers of rock are bent into a series of parallel, alternating arches and troughs.
Which type of rock is formed from the cooling and solidification of molten rock?
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Metamorphic rock
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Igneous rock
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Sedimentary rock
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Extrusive rock
B
Correct answer
Explanation
Igneous rocks are formed from the cooling and solidification of molten rock.
What is the term for a rock that is formed from the accumulation and compaction of sediment?
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Metamorphic rock
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Igneous rock
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Sedimentary rock
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Extrusive rock
C
Correct answer
Explanation
Sedimentary rocks are formed from the accumulation and compaction of sediment.
What is the term for a fold in which the layers of rock are bent into a single, continuous arch?
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Anticline
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Syncline
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Monocline
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Dome
D
Correct answer
Explanation
A dome is a fold in which the layers of rock are bent into a single, continuous arch.
Which type of rock is formed from the alteration of existing rocks by heat, pressure, or chemical reactions?
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Metamorphic rock
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Igneous rock
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Sedimentary rock
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Extrusive rock
A
Correct answer
Explanation
Metamorphic rocks are formed from the alteration of existing rocks by heat, pressure, or chemical reactions.
What is the term for a rock that is formed from the cooling and solidification of molten rock that has erupted onto the Earth's surface?
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Metamorphic rock
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Igneous rock
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Sedimentary rock
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Extrusive rock
D
Correct answer
Explanation
Extrusive rocks are formed from the cooling and solidification of molten rock that has erupted onto the Earth's surface.
Which type of rock is formed from the accumulation and compaction of organic material?
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Metamorphic rock
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Igneous rock
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Sedimentary rock
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Extrusive rock
C
Correct answer
Explanation
Sedimentary rocks can be formed from the accumulation and compaction of organic material.
What is the term for a rock that is formed from the cooling and solidification of molten rock that has intruded into the Earth's crust?
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Metamorphic rock
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Igneous rock
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Sedimentary rock
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Extrusive rock
B
Correct answer
Explanation
Igneous rocks can be formed from the cooling and solidification of molten rock that has intruded into the Earth's crust.
What is the study of the chemical composition of organic matter in the Earth's crust called?
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Organic Geochemistry
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Geochemistry
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Petrology
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Mineralogy
A
Correct answer
Explanation
Organic geochemistry is the study of the chemical composition of organic matter in the Earth's crust.
What are the two main types of organic matter found in the Earth's crust?
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Fossil fuels and biomass
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Minerals and rocks
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Water and air
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Metals and non-metals
A
Correct answer
Explanation
The two main types of organic matter found in the Earth's crust are fossil fuels and biomass.
Which type of volcano is characterized by a steep-sided cone shape and explosive eruptions?
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Shield volcano
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Cinder cone volcano
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Stratovolcano
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Caldera volcano
C
Correct answer
Explanation
Stratovolcanoes, also known as composite volcanoes, are characterized by their steep-sided cone shape and explosive eruptions due to the presence of viscous magma.
Which type of volcanic eruption is characterized by a continuous outpouring of low-viscosity lava?
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Hawaiian eruption
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Strombolian eruption
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Vulcanian eruption
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Pelean eruption
A
Correct answer
Explanation
Hawaiian eruptions are characterized by the continuous outpouring of low-viscosity lava, forming broad, gently sloping shield volcanoes.