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Physics, 12.06.2020 02:57 waltdog

25 PTs I read that the sky is blue because OZone (O3) is blue.
But I also read that liquid and solid oxygen are blue which causes the sky to be blue.

Which is true?

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25 PTs I read that the sky is blue because OZone (O3) is blue.
But I also read that liquid a...
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