Why does the atmosphere appear blue?

Answer 1

Scattering of Light..

Blue and violet, the colors with the shortest wavelengths, are scattered when solar radiation strikes our atmosphere's molecules. Because blue is more visible to humans than violet, this causes the atmosphere to appear blue.

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Answer 2

Mila Bautista

The atmosphere appears blue due to a phenomenon called Rayleigh scattering. This occurs when sunlight interacts with the molecules in the Earth's atmosphere, particularly nitrogen and oxygen. Shorter wavelengths of light, such as blue and violet, are scattered more effectively than longer wavelengths, such as red and orange. As a result, when sunlight passes through the atmosphere, the shorter blue wavelengths are scattered in all directions, giving the sky its blue appearance.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.