Question

(a) What will be colour of the sky in the absence of atmosphere?

(b) Why are the traffic light signals (or danger signals) of red colour?​

Answer 1

Answer:

(b) because the wavelength of red colour is most

(a)t will be dark black

Answer 2

Answer:

black it will be black in color

Explanation:

because the gases in the atmosphere make the sky look sky blue