Question

What are igneous rocks? How many types are there in these rocks? Write about the Intrusive rocks.

Answer 1

Igneous rocks are formed from the solidification of molten rock material. There are two basic types. Intrusive igneous rocks crystallize below Earth's surface, and the slow cooling that occurs there allows large crystals to form.

Answer 2

Igneous rock:

• It is one of the main types of rocks, formed by cooling and solidification of magma.

Explanation:

• They are of two types that are Intrusive and Extrusive.
• Intrusive rock type:
• This rock type is also called plutonic. A huge amount of lava gets trapped deep inside the earth when a few get popped out as volcanoes. The process of its cooling is very slow and takes over a thousand years until it solidifies.
• This slow cooling process makes the individual grain of mineral grow larger in size. Due to larger size of the grains, these rocks have a coarse-grained texture.