Which of the Following Would Be Most Effective in Reducing

Question

Which of the following would be most effective in reducing the amount of CO₂ in the atmosphere?
A) cyanobacteria
B) anaerobic microbes
C) heterotrophic organisms
D) fungi
E) nitrogen fixers

Accepted Answer

Cyanobacteria are able to perform photosynthesis and use carbon dioxide as a substrate, effectively removing it from the atmosphere. This process is called carbon dioxide fixation. Anaerobic microbes, heterotrophic organisms, fungi, and nitrogen fixers do not directly reduce the amount of CO₂ in the atmosphere.