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Nature
Why is the daytime sky blue?
A
Water vapor absorbs red light
B
Air molecules scatter blue sunlight more
C
Ozone is blue
D
It reflects the oceans
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More Nature questions
Which is the largest known living organism on Earth by area?
What share of Earth's oxygen comes from the oceans, not trees?
Which of these is technically a vegetable, not a fruit?
Lightning is hotter than the surface of which of these?
Which layer of the atmosphere contains the ozone layer?