Question

"The crust is not uniform everywhere in thickness". Justify this statement...

Answer 1

The crust is not uniform everywhere in thickness ,this is because of the presence of various valleys and mountains all over the earth

Answer 2

The crust is a relatively small layer compared to the other layers of the earth.It's composition and size varies from place to place.

The crust extends to a depth of about 60km below high mountains and 5-10km below seas and oceans.

Hope this helps...