If the crust was one piece, it would mean that the molten core of the planet had cooled and solidified, meaning that the iron core of the planet was no longer rotating at a different rate than the rest of the planet. This would result in the loss of the magnetic field of the planet, meaning the atmosphere would be exposed to the full force of the solar wind. The surface of the planet would be bathed in solar radiation, and over time the atmosphere would be blown away leaving Earth much like Mars.
plates
Large pieces of the Earth's crust are called tectonic plates. Currently, there are 7 to 8 major tectonic plates in the Earth's crust.
They are called plates!
The Earth's crust
20 plates
The different pieces that the Earth's crust is broken into are known as tectonic plates.
There are 43 plates on the earth.
Tectonic or lithospheric plates.
that the earth crust are made up of all different plates
plates of the earth's crust that float on top of the molted mantle layer.
plates
Large pieces of the Earth's crust are called tectonic plates. Currently, there are 7 to 8 major tectonic plates in the Earth's crust.
The crust. All of the Earths crust are part of techtonic plates.
Earthquakes occur when a shift in the earth's crust causes tremors to rock the surface of the earth around the shift. Since the Earth's crust is divided into different plates, and these plates move around (very slowly) on the earth, there are earthquakes. Also, since there are different parts that the plates meet at, there are certain "hotspots" where more earthquakes happen (where the plates meet).
The Earth's tectonic plates do not move on top of the crust, they are the crust. The crust is made out of plates. The plates float on top of the mantle, which is made of molten rock, called magma. The plates move because of currents in the magma.
They are called plates!
The earth's crust is made up of tectonic plates.