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The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth's early life and solidified into hard rock's called

A. granite

B. basalt

C. igneous rocks

D. sedimentary rocks

Answer: Option C

Solution(By Examveda Team)

The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth's early life and solidified into hard rock's called igneous rocks.

This Question Belongs to General Knowledge >> Chemistry

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