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Question
The density of interstellar dust is very low, yet it still blocks starlight becauseA) it is so cold it absorbs higher energy photons.
B) there is 100 times more opaque gas than dust present in the interstellar medium.
C) the dust particles are about the same size as the light waves they absorb.
D) the dust particles are irregular in shape.
E) ice particles reflect all light back toward their stars, not toward us.
Answer
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