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Gneiss is obtained from
Answer & Solution
Correct Answer:
Option
B
Gneiss is a type of rock that forms through a process of metamorphism. Let’s look at the options:
Option A: Igneous rocks → Incorrect. Igneous rocks are formed from the cooling and solidification of molten material, such as magma or lava. Gneiss is not derived from igneous rocks.
Option B: Metamorphic rocks → Correct. Gneiss is a metamorphic rock that is formed when granite or other rocks undergo high pressure and temperature, leading to the formation of distinct bands.
Option C: Sedimentary rocks → Incorrect. Sedimentary rocks form from the deposition of materials over time, such as sand, silt, and clay. Gneiss does not come from sedimentary processes.
Option D: Sedimentary metamorphic rocks → Incorrect. Gneiss is specifically a metamorphic rock, not a combination of sedimentary and metamorphic types.
Therefore, the correct answer is Option B: Metamorphic rocks, as gneiss is derived from the metamorphism of other rocks, typically granite.
Option A: Igneous rocks → Incorrect. Igneous rocks are formed from the cooling and solidification of molten material, such as magma or lava. Gneiss is not derived from igneous rocks.
Option B: Metamorphic rocks → Correct. Gneiss is a metamorphic rock that is formed when granite or other rocks undergo high pressure and temperature, leading to the formation of distinct bands.
Option C: Sedimentary rocks → Incorrect. Sedimentary rocks form from the deposition of materials over time, such as sand, silt, and clay. Gneiss does not come from sedimentary processes.
Option D: Sedimentary metamorphic rocks → Incorrect. Gneiss is specifically a metamorphic rock, not a combination of sedimentary and metamorphic types.
Therefore, the correct answer is Option B: Metamorphic rocks, as gneiss is derived from the metamorphism of other rocks, typically granite.
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LoginGneiss is a common and widely distributed type of metamorphic rock. Gneiss is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks.
So Answer B is correct