Answer:
The intrusive rocks have small to medium grins size and extrusive have infinite t o microscopic texture. There cooling time may take sec to months while for intrusive its thousand of years.
Explanation:
- They vary due to the intrusive-igneous rock forms as magma-pushes into the rock from below the earth's-surface and the extrusive-rock are formed when lave erupts onto the-surface. They are same as they are both made-crystals.
