Rock II चट्टानों के बारे में...........
Channel: study news
Date: 05/01/2021

Rocks are formed by mixing different types of minerals. Sometimes rocks are formed by only one mineral but usually it is a mixture of two or more.
About 98% of the entire top of the Earth is made up of eight elements - oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium, and the rest is made up of hydrogen, phosphorus, manganese, sulfur, carbon nickel and other materials. 
Igneous rocks are formed from magma or lava emitted from volcanoes. When heated and liquid magma cools and solidifies in the outer and outer layers of the Earth, this type of rock forms.
These rocks also eat 'primary or parent' rocks.
Igneous rocks are porous, crustless, hard formed and fossil free.
These rocks contain precious minerals like magnetic iron, nickel, copper, lead, zinc, chromite, manganese, gold, platinum. And there is a lack of fossils in these rocks.



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