MCQOPTIONS
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| 1. |
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» D. sedimentary rocks | |