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Social Studies, 19.09.2019 08:30 Airport12lt

Which is evidence that scientists use to support the big bang theory?
a. there is constant cosmic background radiation.
b. galaxies are moving toward each other.
c. a loud explosion can be heard in the radio frequencies everywhere in the universe.
d. hydrogen and helium are the most abundant elements in the universe.

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Which is evidence that scientists use to support the big bang theory?
a. there is constant co...
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