Question

the thickness of the crust below the continents is less as compared to oceans​

Answer 1

Answer: There is a conceptual misunderstanding here. The oceanic crust differs from the continental crust by a greater density and a thinckness of 5 to 15 km, as well as the depth of the continental crust that can reach more than 70 km!

Well, If you got in the way of typing by reversing the ordem, here is the explanation:

The lower density explains the reason that the continental crust presents a positive relief in relation to the level of the sea forming the emergent lands, or continents. Another difference is the formation of the oceanic crust, predominantly composed of rocks of the Basic type, plutonic, sedimentary, volcanic and subvolcanic. However the continental crust is generally formed by silico-aluminio granite rocks (SiAl).

Explanation:Hope It is helpful

Answer 2

Answer:

The width of continental crust varies between 35-40 km whereas the width of oceanic crust is between 7-10 km. Orogeny takes place on the continental crust which creates mountains and thickens the crust. More mass accumulates with time which eventually increases the width of continental crust.