Nearly all the helium in the universe was formed in
A) the first few minutes after the big bang.
B) the interior of stars.
C) supernova explosions.
D) black holes.
Correct Answer:
Verified
Q39: Primary cosmic rays consist of
A) atomic nuclei,
Q40: Dark energy
A) is the energy equivalent of
Q41: The number of planets outside the solar
Q42: The heavy elements in the earth were
Q43: Communications with planets outside the solar system
Q45: Planetary systems are probably
A) very rare in
Q46: Studies of the cosmic background radiation suggest
Q47: The members of the solar system
A) came
Q48: The cosmic background radiation today
A) is present
Q49: Immediately after the big bang, the universe
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