Question

why sky is blue in colour? explain...................

Answer 1

It's not actually blue in colour
we see it is blue during day because of various gases or other reasons

Answer 2

Heya friend
Here is the answer
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight

For more information check out this
https://spaceplace.nasa.gov/blue-sky/en/

Hope it helps
Please mark brainliest