Question

What are the extrusive rocks and intresive rocks

Answer 1

Intrusive rocks:- when the molten magma cools down deep inside the earth's crust ,the intrusive rocks are originated.

Extrusive rocks :- when the molten lava comes on the earth's surface, it cools down and becomes solid to form rocks. These types of rocks are called extrusive rocks.

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Answer 2

Answer:

When the molten magma comes on the earth 's surface , it rapidly cools down and becomes solid . Rocks formed in this way on the crust are extrusive igneous rock .

Sometimes the molten magma cools down deep inside the earth's crust . Solid rocks so formed are actually intrusive igneous rocks.