Question

continental crust is thicker than oceanic crust. give reason​

Answer 1

Answer:

This is the answer

Explanation:

Continental crust

The continental crust is the layer of granitic, sedimentary and metamorphic rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves.

It is less dense than the material of the Earth's mantle and thus "floats" on top of it.

Continental crust is also less dense than oceanic crust, though it is considerably thicker; mostly 35 to 40 km versus the average oceanic thickness of around 7-10 km.

About 40% of the Earth's surface is now underlain by continental crust.

Answer 2

Answer:

The oceanic crust is made of a mineral called mafic that have a high amount of magnesium as well as iron, and as a result of this, the density tends to be high. Magma eruption occurs at the boundary of the divergent plate. For the later, it is made up of a mineral called felsic that have a high amount of alkalis; the alkali, therefore, have less density when comparing them with that of oceanic crust