Why does the colour of the sun appear red during sunset?

Why does the colour of the sky appear blue?

Why does the sun appear red at sunset ?

The Sun appears red during sunset because _____

Why does the sun appear red at sunrise ?

What is the difference in colours of the sun observed during sunrise/sunset and noon? Give explanation for each.

What is the difference in colours of the sun observed during sunrise/sunset and noon ? Give explanation for each.