Q5 of 30 Page 15

Give geographical reasons:

The thickness of the crust below the continents is more as compared to oceans.

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.


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