Question

Explain each of the following in brief(in at least 150words each)-
1-Igneous rocks
2-Intrusive Igneous rocks
3-Extrusive Igneous rocks
Sedimentary rocks
Metamorphic rocks

Answer 1

Dear student
Intrusive igneous rocks are formed by the cooling of molten magma deep inside the earth's surface. These rocks have karge grains as they cool down slowly. e.g. Granite.

Extrusive igneous rocks are formed by cooling of the lave on the surface of the earth. These rocks have fine grains. e.g. Basalt.

Igneous rocks-they are formed underground the earth when the magma becomes trapped in small pockets these pocket of magma cools slowly and forms igneous rock .

sedimentary rocks-such rocks are formed by deposition of sediments brought by winds and rivers .

metamorphic rocks-when igneous and sedimentary rocks come inder heat and pressure they change into new forms called metamorphic rocks.

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