Question

Why is the sky blue and why do we get cancer

Answer 1

Answer:

But we do know that exposure to light suppresses the secretion of melatonin, a hormone that influences circadian rhythms, and there's some experimental evidence (it's very preliminary) that lower melatonin levels might explain the association with cancer.

Hope it helps .

Answer 2

Answer:

the sky is blue because blue colour scatters more than compared to violet and indigo

when blue colour falls on the colloidal particles present in the earth's atmosphere, it spreads. So sky appears blue