Write the difference between extrusive and intrusive igneous rocks?

Answer 1

igneous Extrusive is cool on the outside of the crust and cools quickly before crystal forms

igneous Intrusive is cool on the inside of the crust and cools slowly and allowing crystal to form

Answer 2

Extrusive igneous rocks form on the Earth's surface from rapidly cooling lava, resulting in fine-grained texture. Intrusive igneous rocks form beneath the Earth's surface from slowly cooling magma, resulting in coarse-grained texture.