Question

how much of the light that reaches the earth from the sun is used for photosynthesis?
a 5%
b 50%
c 1%
d 100%

Explanation:

Photosynthesis is a process in plants where they convert light energy into chemical energy. The light from the sun that reaches the Earth has various wavelengths. Only a small fraction of this light is actually used for photosynthesis. This is because some light is reflected, some is transmitted through the plant without being absorbed, and only specific wavelengths (those that can be captured by chlorophyll and other pigments) are utilized. Among the given options, 1% is the commonly accepted approximate value for the proportion of sunlight reaching Earth that is used for photosynthesis.

Answer:

C. 1%