Multiple Choice
Antimatter is relatively rare in the universe because
A) antimatter is dark matter that is very difficult to detect with today's technology.
B) cosmic microwave background radiation absorbs antimatter in space.
C) antimatter is a short-lived transient state for quarks.
D) laboratory research indicates that matter was more plentiful early and annihilated the antimatter.
E) each galaxy produces a specific type of matter, according to Hubble's law.
Correct Answer:

Verified
Correct Answer:
Verified
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