Answer: I am getting a result around the 54,800 area, so I am selecting the 55,000 HP answer.
<span>Tectonic plates move because they are floating on top of the liquid mantle. The mantle itself moves due to convection currents: hot rock rises, gives off some heat, then falls. This creates vast swirls of moving liquid rock under the crust of the earth, which jostles the plates of crust on top.
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The answer is 1575, I just took the Review.<span />
B. +Q, + W are the correct sign