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Question
The spectra of most stars are dark-line spectra because ________.A) elements in the Sun's outer atmosphere emit radiation between these dark bands
B) elements in the Sun's outer atmosphere absorb in these dark-line bands, blocking the radiation in those bands
C) elements in the earth's atmosphere absorb in these dark-line bands, blocking out the frequencies in the dark bands
D) electrons decaying to a lower energy state emit a photon at a fixed energy, leaving dark bands between the emissions
Answer
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