This change is due to an increase in earths revolution rate.(:
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In the earth’s mantle , large amounts of heat are transferred by convection currents, which would cause the heat from the core and the mantle itself causes convection currents in the mantle . The hot rocks eventually will cool and sink back through the mantle which will make the cycle repeat which would be the cycle of rising and sinking .
Ocean wind circulation mainly mechanism climate change Earth
I think it's B but I'm not to sure. hope that at least kinda helps.
D. It’s a dictatorship, despite his flaws, has done an excellent job of managing food resources