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They smooth earths surface
The earths magnetic field results from deep in the earths core. Magnetic conduction from within the earths core is believed to be the cause of this.
By slowing down the earths rotation but will not make effect to humans .
What brings material from the Mantle to the Earth's Surface is rock...
It is the Atlantic Ocean
Extrusive rocks are formed outside of earths surface. Intrusive rocks are formed inside earths surface.
Below the earths surface.
Plutons
Earthquakes!!!!
Extrusive.
Igneous.
It is an Earth quake
It depends on the cooling of lava. Slow cooling forms big crystals deep under the surface while fast cooling creates small crystals on or just below the earths surface. Itstant cooling wouls have no crystals.
The slow cooling of magma far beneath earth's surface creates the rock inside earth to change slowly... this means that earths surface changes in times because of this cooling magma.
It causes wind, with help from the moon's gravitational pull it causes ocean currents and it also helps with the seasons and weather.Windsconvection currentsUnequal heating of the earth's surface results in wind. That is what happens, if that's your question.
100
70% or 80% of water covers the earths surface