Q. What is the amount of carbon fixed in biosphere through photosynthesis annually?
A) $4 \times 10^{13}kg$
B) $5 \times 10^{13}kg$
C) $4 \times 10^{16}kg$
D) $5 \times 10^{16}kg$
Explanation
$4 \times 10^{13}\ kg$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.