The theory of global warming states that the average temperature of the earth has been increasing over time. this theory will be most strongly affected by scientific studies that

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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