Question

Give one difference between Extrusive igneous and Intrusive igneous rocks.

Give two differences between Extrusive Igneous and Intrusive Igneous rocks.

Answer 1

S. No.	Extrusive Igneous rocks	Intrusive Igneous rocks
1.	They are created when molten magma cools on the surface of the earth.	When magma solidifies inside the earth's crust, they are created.
2.	These rocks have fine grains, are crystalline, and are smooth.	These are hard rocks with big crystals and a gritty feel.
3.	Example: Basalt	Example: Granite