The layer which is said to support the slow moving tectonic plates is ____

What is the speed attained by the P-waves in the C-layer under the Continental crust?

Who was the first person to tell about the Core?

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

The depth at which the Mohorovicic discontinuity occurs is ________

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

The thickness of the 2 layers of the upper mantle is approximately said to be ____

The depth up to which the mantle is said to exist is ____