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
Which of the following is an example of a metamorphic rock formed from limestone?
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Granite
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Basalt
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Slate
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Marble
D
Correct answer
Explanation
Marble is an example of a metamorphic rock formed from limestone through the application of heat and pressure.
What is the composition of the Earth's crust?
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Silicon, Oxygen, Aluminum, Iron
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Silicon, Oxygen, Magnesium, Iron
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Silicon, Oxygen, Aluminum, Calcium
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Silicon, Oxygen, Magnesium, Calcium
A
Correct answer
Explanation
The Earth's crust is composed primarily of silicon, oxygen, aluminum, and iron. These elements make up the majority of the mass of the crust and are responsible for its composition and structure.
What is the composition of the Earth's mantle?
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Oxygen, Silicon, Magnesium, Iron
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Oxygen, Silicon, Aluminum, Iron
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Oxygen, Silicon, Magnesium, Calcium
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Oxygen, Silicon, Aluminum, Calcium
A
Correct answer
Explanation
The Earth's mantle is composed primarily of oxygen, silicon, magnesium, and iron. These elements make up the majority of the mass of the mantle and are responsible for its composition and structure.
What is the composition of Mars?
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Oxygen, Silicon, Magnesium, Iron
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Oxygen, Silicon, Aluminum, Iron
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Oxygen, Silicon, Magnesium, Calcium
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Oxygen, Silicon, Aluminum, Calcium
A
Correct answer
Explanation
Mars is composed primarily of oxygen, silicon, magnesium, and iron. These elements make up the majority of the mass of Mars and are responsible for its composition and structure.
What is the term used to describe the tendency of some minerals to break along specific planes or directions?
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Cleavage
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Fracture
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Luster
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Hardness
A
Correct answer
Explanation
Cleavage refers to the tendency of certain minerals to break along specific planes or directions, resulting in smooth, flat surfaces.
What is the term used to describe the way a mineral breaks when it is not along a cleavage plane?
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Cleavage
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Fracture
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Luster
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Hardness
B
Correct answer
Explanation
Fracture refers to the way a mineral breaks when it is not along a cleavage plane, and can be described as conchoidal, uneven, or splintery.
What is the term used to describe the specific gravity of a mineral?
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Cleavage
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Fracture
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Luster
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Specific gravity
D
Correct answer
Explanation
Specific gravity refers to the ratio of the density of a mineral to the density of water, and is used to identify and classify minerals.
Which of the following is a common geological indicator of mineralization?
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Hydrothermal alteration
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Vein formation
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Metamorphism
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All of the above
D
Correct answer
Explanation
Hydrothermal alteration is the alteration of rocks and minerals by hot, mineral-rich fluids. Vein formation is the filling of fractures with minerals. Metamorphism is the transformation of rocks under the influence of heat, pressure, and chemical reactions. All of these processes can be associated with the formation of mineral deposits.
Which of the following is a characteristic feature of Gondwana rocks?
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Folded mountain ranges
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Extensive coal deposits
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Abundant volcanic rocks
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Large-scale glaciations
B
Correct answer
Explanation
Gondwana rocks are known for their extensive coal deposits, formed from the accumulation of plant matter in ancient swamps.
Which of the following is an example of a river or stream that flows underground through soluble rock, such as limestone or gypsum?
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Mississippi River
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Nile River
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Amazon River
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Karst River
D
Correct answer
Explanation
A karst river is a type of river or stream that flows underground through soluble rock, such as limestone or gypsum, creating unique cave systems and underground channels.
What is the material of the Rosetta Stone?
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Granite
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Limestone
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Sandstone
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Basalt
D
Correct answer
Explanation
The Rosetta Stone is made of basalt, a dark, volcanic rock.
Which of the following is NOT a type of karst landform?
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Sinkhole
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Cave
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Stalactite
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Dune
D
Correct answer
Explanation
Dunes are not karst landforms. They are aeolian landforms, which are formed by the wind.
Which of the following is NOT a type of volcanic landform?
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Lava flow
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Ash cone
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Cinder cone
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Dune
D
Correct answer
Explanation
Dunes are not volcanic landforms. They are aeolian landforms, which are formed by the wind.
Which of the following is NOT a common type of sediment found in river deposits?
D
Correct answer
Explanation
Coal is not a common type of sediment found in river deposits.
Which mineral is commonly used in the production of cement?
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Limestone
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Granite
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Basalt
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Sandstone
A
Correct answer
Explanation
Limestone, composed primarily of calcium carbonate, is a key ingredient in the production of cement.