What was technicalagy like in the past

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

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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