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Why is cooling expected as the universe expands in the Big Bang theory?

Answer and explanation

Correct answer: Because expansion distributes energy over a larger volume

Expansion made the early hot universe cool gradually. In exams, write expansion and temperature decrease together.

Related tags

OriginEvolutionBigbangCoolingEarly And Modern TheoriesThe Origin And Evolution Of The EarthGeographyClass 11 Mcq

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