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TOEFL
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Listening practice
/ Section KSQE
Listen to an Academic Talk
Listen to a talk in an earth science class.
Listen
27. According to the professor, why is the sky not violet?
A
There is less violet in sunlight, and our eyes are more sensitive to blue.
B
Violet light cannot pass through the atmosphere.
C
Violet light has longer waves than blue light.
D
Violet light is scattered only at sunset.