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Answer:
According to the Big Bang Theory, the density and temperature of the Universe is lower now than in the past.
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The density and the temperature of the universe should be lower as compared to the past.
What is the big bang theory?
According to this theory, it description of the way the universe should be started is provided by the astronomers. The temperature of the universe should be very much hot, the universe size should be small also the universe should be super dense. However, the universe size should be expanded and the temperature should be colder according to the time.
Learn more about temperature here: https://brainly.com/question/14628211
