Carbon fixation is the process through which carbon dioxide is removed from the air and incorporated into a solid. Photosynthesis is a type of carbon fixation. If the rate of carbon fixation decreases and all other things remain the same, the amount of carbon dioxide in the atmosphere will increase.

Biomass is a way to measure the total amount of life. An increased biomass could result from an increase in the number of individuals, an increase in the size of each individual, or some combination of the two.

Which of the following could be caused by a decrease in carbon fixation?
A.
a decrease in the total biomass of consumers in the world
B.
a decrease in the total biomass of producers in the world
C.
an increase in the size of insects and arthropods
D.
all of these

1 answer

B. a decrease in the total biomass of producers in the world