Answer:
Heat flows from hot to cold objects. When a hot and a cold body are in thermal contact, they exchange heat energy until they reach thermal equilibrium, with the hot body cooling down and the cold body warming up. This is a natural phenomenon we experience all the time.
Explanation:
Einstein's...<span> theory of general relativity predicted that the </span>space-<span>time....</span>
Your answer will be Radio Waves .
That seems to be the only to make sense. Hope that helps u