"what is salt composed of? " maria wondered. she took a microscope from the cabinet in her science classroom, put some salt on a microscope slide, and focused on the salt. she saw tiny squares on the slide. "i guess salt is made only of crystals: " maria observed. is maria correct in her conclusion?

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.

hope it