Biology, 24.08.2019 13:30, Usman458

According to the big bang theory, the entire universe began as a
a. supernova explosion.
b. cool, dark expansive nebula.
c. dense, hot, supermassive ball.
d. scattered band of space dust.

Answers: 2

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According to the big bang theory, the entire universe began as a
a. supernova explosion.
...