Which occurrence would contradict the big bang theory? a) the percentage of carbon dioxide in earths atmosphere increases b) scientist discover that 99% of the universe’s mass is hydrogen c) a radio telescope detects microwave radiation in space d) distant galaxies move progressively farther away from earth

B) Scientist discover that 99% of the universe’s mass is hydrogen

Explanation:

Hydrogen and helium represent almost all nuclear matter in the current state of the universe. This is consistent with the Big Bang theory. This theory indicates that approximately 25% of the universe’s mass is helium, while hydrogen constitutes approximately 73% of the universe’s mass.

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explanation:

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