Multiple Choice
The extinction of starlight due to the interstellar medium
I. is the greatest in the ultraviolet.
II. is the greatest in the infrared.
III. is caused by ionized hydrogen.
IV. is caused by dust particles.
A) I,III
B) II III
C) I, IV
D) II IV
E) only IV
Correct Answer:
Verified
Correct Answer:
Verified
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