How are igneous rocks formed?

Question

Particles in water become sediment and harden into rocks.

Chemical reactions form new types of rocky minerals.

Igneous rocks are formed from molten magma inside the Earth that cool.

Particles of sand and mud form layers that harden into rock.

Answer 1

Igneous rocks are formed from molten magma that cools and solidifies. This process can occur either below the Earth's surface, where it is known as intrusive or plutonic igneous rocks (such as granite), or on the surface after a volcanic eruption, known as extrusive or volcanic igneous rocks (such as basalt). So, the correct explanation is:

Igneous rocks are formed from molten magma inside the Earth that cool.