Question : The majority of Earth's crust is composed of which rock?
Option 1: Igneous
Option 2: Metamorphic
Option 3: Sedimentary
Option 4: Carbonate
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Correct Answer: Igneous
Solution : The correct answer is Igneous rocks .
Earth's crust is majorly made up of igneous rocks, about 75%. During the evolution of the earth in its present form, it underwent a process known as gravitational differentiation. In this, the heavier metals from the earth's crust went inside, and the lighter earth material was thrown up through volcanic activity. It led to the stratification of the earth in its present form, and it is also the reason behind the igneous nature of rocks on the earth's crust.
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Question : What type of rock is granite?
Question : Which among the following rocks may also contain fossils of plants, animals and other microorganisms that once lived on them?
Question : Which of the following is an example of Plutonic Igneous Rock?
Question : What is the Earth's escape velocity?
Question : What is the purpose of the Earth's magnetic field?
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