Question

what is extrusive igneous rocks and intrusive igneous rocks?​

Answer 1

The igneous rocks that are formed due to cooling of magma outside the Earth's crust are extrusive igneous rocks

eg:basalt

The Igneous rocks that are formed inside the Earth's crust are called intrusive igneous rocks

eg: granite

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Answer 2

Answer:

Extrusive Igneous Rocks- They are formed by the cooling of molten magma on the earth's surface. The magma which is brought to the surface through fissures or volcanic eruptions, solidifies to form rocks.

Intrusive Igneous Rocks- When the magma solidifies within the earth's crust it cools slowly forming coarse textured, hard rocks with large crystals, eg., granite, gabro, dolomite.

Explanation:

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