Question

why the colour of sky apper to be Blue ​

Answer 1

Answer:

The actual reason that the sky is blue is a process that causes solar radiation to be scattered as it hits Earth’s atmosphere, transforming it into diffuse sky radiation.

Answer 2

Answer:

Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. ... Also, the surface of Earth has reflected and scattered the light.

Explanation:

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