Question

Give geographical reason: 

There are discontinuities in the interior of the earth.   

Answer 1

The discontinuities in the interior are boundaries between crust, mantle, and inner core. They also exist within crust, mantle, and core.

Discontinuities are formed due to variation in the composition of the earth’s interior at different layers. Each of these layers consists of materials having a distinct composition, physical and chemical properties. For instance, Conrad discontinuity exist within earth’s crust because the Continental crust is made up of silica and aluminum and Oceanic crust is made up of silica and magnesium.