Crust It is on the top floor of the world which are humans and creatures live. Crust is the sea and the ocean water is 70-75% of the 25-30% of the land is also available for various elements, including stone and basalt magnesium silica.
The crust is a layer on top of the world with human and living beings. The crust of the seas and oceans of water is 70-75% 25-30% of the land is also a rock and minerals including basalt, silica, potassium magnetosphere.
The earth is the top layer of the earth which human beings live earth is that water is the sea and ocean 70-75% part is the land 25-30% also stone and the elements. Including basalt, silica, magnesium