Question

intrusive or extrusive?
formed on the surface if earth.

Answer 1

Rocks that are formed on the surface of the Earth are classified as **extrusive** igneous rocks. These rocks are created from lava that cools and solidifies quickly at or near the Earth's surface, as opposed to intrusive igneous rocks, which form from magma that cools slowly beneath the surface. Examples of extrusive rocks include basalt and pumice.