Question

what is the defination of earths crust

Answer 1

Answer:

The uppermost layer of the earth is called crust.

Answer 2

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Crust :

 The crust is the outer most layer of the Earth ‘s Surface

 The oceanic crust is called sima and it is made up of silicon and magnesium .

 The main Components of the continental landmass are silicon and aluminium so it is called Sial.

 The main components that makes up the crust are Silicon , Aluminium and Magnesium.

 The thickness of the crust varies from 5-8 km beneath the oceans and to an average of 35 km under the continental landmass .

 The density of the crust is less than 3g/cc .The ocean crust is denser than the continental crust.

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