Blue colour of water in sea is due to

Options

A. the presence of algae and other plants found in water
B. reflection of sky in water
C. scattering of light
D. absorption of light by the sea

Answer

C

Explanation

The Ocean looks blue because red, orange and yellow (long wavelength light) are absorbed more strongly by water than is blue (short wavelength light). So when white light enters the ocean, it is mostly the blue that gets returned.