The big bang is thought to have occurred about
A) a million years ago.
B) 14 million years ago.
C) 14 trillion years ago.
D) 14 billion years ago.
E) 5000 years ago.
Correct Answer:
Verified
Q19: The universe is made mostly of
A) dark
Q20: How do we know the shape of
Q21: Evidence for the big bang comes from
A)
Q22: If you were in a rocket ship
Q23: The big bang created
A) space and time.
B)
Q25: According to the principle of equivalence, gravity
Q26: Galaxies seem to be made mostly of
Q27: The evidence favors a universe whose overall
Q28: Since accelerations are equivalent to gravity, a
Q29: Dark energy
A) has never been directly observed
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