If the setting Sun appears red, you may conclude that ____
a. the Sun's surface temperature has cooled somewhat at the end of the day
b. the longest wavelengths of visible light are striking your eyes
c. the next day's weather will be stormy
d. you will not be able to see the Moon that night
e. the shortest wavelengths of visible light are striking your eyes
ANSWER: b
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Fill in the blank(s) with correct word
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