Of the total incident solar radiation the proportion of PAR is:

Options

A. More than `80%`
B. About `70%`
C. About `60%`
D. Less than `50%`

Answer

D

Explanation

Of the incident solar radiation less than `50%` of it is photosynthetically active radiation. Plants capture only `2-10%` PAR or `1-5%` incident solar radiation.