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If the earth had no atmosphere at all, the chapter suggests the sky would appear

Question
If the earth had no atmosphere at all, the chapter suggests the sky would appear
still bright blue, unaffected by atmosphere
dark, since there would be no scattering
bright white, due to maximum scattering
bright red at all times
Answer
dark, since there would be no scattering
Detailed Explanation
The chapter states that if the earth had no atmosphere, there would be no scattering, and the sky would have looked dark.
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