The convection drive plates tectonics through a combination of pushing and spreading apart at mid-ocean ridges and pulling and sinking downward at subduction zones. At subduction zones, two tectonic plates meet and one slides beneath the other back into the mantle, the layer underneath the crust.
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Continental climate is a type of climate characterized by consistently hot summers, persistently frosty winters and low rainfall. The continental climate is formed as a result of the prevailing impact on the atmosphere of large land masses. This type of climate is typical for the interior regions of the continents.
The continental climate is dominant in a significant part of the territory of Russia, Ukraine, Kazakhstan, Uzbekistan, Mongolia and the interior regions of the United States and Canada. It leads to the formation of steppes and deserts, since most of the moisture of the seas and oceans does not reach the inland regions.
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The USA became involved in Vietnam because it feared the spread of communism. The USA were unable to defeat the Vietcong and were met with growing opposition to the war back home.
this is the only one I can answer, I'm sorry. I hope this helps though
All the phase changes involve transfer of energy
gravity affects the water cycle because it pulls denser water down and less dense air up. it also causes precipitation to fall from clouds. sunlight provides energy for the water cycle