Question

why the sky is blue?​

Answer 1

Answer:

because the sunlight reflected by the water on earth and moisture presents in air

Answer 2

$\huge \purple{ \mathcal{Answer:-}}$

Bcoz in VIBGYOR (spectrum) , the blue color radiates nd scatters the most.

In the sky also this process occurs nd blue colour spreads most , that's why it looks blue.