Multiple Choice
Which component of the Milky Way Galaxy accounts for interstellar extinction,the dimming of light from distant objects?
A) cool hydrogen gas
B) so-called hidden or missing matter since its absorbing properties render it invisible in the Galaxy
C) molecules such as H₂ and CO, which are strong absorbers, in molecular clouds
D) dust
Correct Answer:
Verified
Correct Answer:
Verified
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