1. How does weak background radiation coming from every direction in the sky support the Big Bang Theory?

Question

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2 points
it provides evidence of universe contraction
it provides evidence of the universe's increasing mass
it provides evidence of the universe's decreasing mass
it provides evidence of universe expansion

Answer 1

it provides evidence of universe expansion

Answer 2

2. How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory?
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2 points
The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe shrinks
The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe expands.
The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe shrinks.
The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe expands.

Answer 3

The correct answer is: The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe expands.