Question

1. does lava create intrusive or extrusive rock?

Explanation:

To determine if lava creates intrusive or extrusive rock, we recall geological concepts: Intrusive rocks form from magma cooling below the Earth's surface, while extrusive rocks form from lava (magma that reaches the surface) cooling quickly at or above the surface. So lava (on the surface) forms extrusive rock.

Answer:

Lava creates extrusive rock.