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Q: Rocks that are formed by the cooling of magma are called :
  • A. igneous rocks
  • B. rock salts
  • C. sedimentary rocks
  • D. metamorphic rocks
Correct Answer: Option A - Igneous rocks form when magma (molten rock) cools and crystallizes, either at Volcanoes on the surface of the Earth or while the melted rock is still inside the crust. Igneous rocks can have many different compositions, depending on the magma they cool from.
A. Igneous rocks form when magma (molten rock) cools and crystallizes, either at Volcanoes on the surface of the Earth or while the melted rock is still inside the crust. Igneous rocks can have many different compositions, depending on the magma they cool from.

Explanations:

Igneous rocks form when magma (molten rock) cools and crystallizes, either at Volcanoes on the surface of the Earth or while the melted rock is still inside the crust. Igneous rocks can have many different compositions, depending on the magma they cool from.