Question

How are the continental plates formed and how are they eventually destroyed?

Answer 1

continental plates are formed due to cooling of magma. We know that continental plates are continuously moving. Since the shape and size of the earth is not changing due shifting of continental plates, the plates need to form layers. This is the reason for the formation of mountains and trenches. This are formed when two plates collide with each other and one plate moves down another. The plate moving down gets heated tremendously due to the internal heat of the Earth and melts this way it gets destroyed. Plates can only move if they are pushed apart. thus whenever two plates are pushed away from each other molten magma comes out of the surface of the Earth. this way new crust is formed. Thus to conclude continental plates, a product of cooling of magma, gets formed again when destroyed by the movement of the plates.
Hope this helps you :)

Answer 2

Answer:

continental plates are formed due to cooling of magma we that continental plates are continuously moving since the earth is not

changing due shifting