The density of the oceanic layer in the crust is said to be ________

The exact nature of the mantle is completely understood.

The expansion of SIMA is ________

The layer which does not transmit the S-waves is ___

The granite layer in the crust is also referred to as ________

What is the thickness of the crust under the mountainous areas and in particular the Himalayas?

The depth at which the Mohorovicic discontinuity occurs is ________

The discontinuity which marks the lower boundary of the crust is __________