Question

______ form from the cooling and hardening of molten magma in many different environments.
a igneous rocks
b sedimentary rocks
c metamorphic rocks
d none of the above

Explanation:

Igneous rocks are defined as rocks formed by the cooling and solidification of molten magma or lava, which can occur in various environments (intrusively underground or extrusively on the Earth's surface). Sedimentary rocks form from deposited and compacted sediments, while metamorphic rocks form from existing rocks altered by heat and pressure.

Answer:

a. Igneous rocks