Amount of carbon fixed annually through photosynthesis is
A. 4.6 x 1010 kg
B. 7 x 1013 kg
C. 7 x 1020 kg
D. 4.6 x 1021 kg
Answer:B
Amount of carbon fixed annually through photosynthesis is
A. 4.6 x 1010 kg B. 7 x 1013 kg C. 7 x 1020 kg D. 4.6 x 1021 kg