Due to the density of the rocks that vary the scientist believe is the reason for the hot and plastic-like rocks to form in the earth's asthenosphere and rise above the surface.
As the rocks with a higher density and a higher weight exert great pressure and force that lead to the rise of magma and escape of gases from the surface and the thus the magma is released to the surface of the earth.
They form when wind blows over the surface of the ocean. Wind energy is transferred to the sea surface. Then, the energy is carried through the water by the waves. This gives waves the energy to erode the shore.
