GUYS PLEASE MAD URGENT What is the source of heat that causes convection currents in the mantle?

When molten rock is heated, what direction does it move in the mantle?

When molten rock reaches the top of the mantle it begins to cool and spread out. How does this affect the plate sitting above it?

The question to your answer is illinois amigo

Unique question.well, using science, you cannot create or destroy even if you do eat yourself so you would not grow twice as big, nor would you disappear. you would stay the same but change states potentially, or at least change your appearance (obviously).hope this . keep up these unique questions.

Radius energy hope this