Question

Intrusive and extrusive igneous rocks

Answer 1

Intrusive Igneous Rocks	Extrusive Igneous Rocks
1.The igneous rocks found below the surface of the Earth are known as intrusive igneous rocks.	The igneous rocks found on the surface of the Earth are known as extrusive igneous rocks.
2.These are formed when the magma cools and solidifies below the Earth's surface.	These are formed when the lava cools and solidifies after reaching the Earth's surface during a volcanic eruption.
3. Examples: Granite and dolerite	Examples: Basalt and obsidian