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it's A endothermic its when two objects rub each other to form heat this is also known as friction force
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The theory for the origin and evolution of the universe is the Big Bang model, which states that the universe began as an incredibly hot, dense point roughly 13.7 billion years ago.
The Yellow Book. The yellow book is the object that reflects light with the longest wavelength. In the visible spectrum the color with the shortest wavelength is violet while the longest is red
the solute is the one that dissolves meaning its particles are separating into the solvent, and the solvent is the one that dissolves the other substance.
