Which of the following are ecological services?
A. O2 fixation, CO2 release, and pollution
B. Nitrogen fixation and pollution
C. CO2 fixation, O2 release, and pollination
D. CO2 fixation, fertilization, and the release of sodium
Answer:C
Which of the following are ecological services?
A. O2 fixation, CO2 release, and pollution B. Nitrogen fixation and pollution C. CO2 fixation, O2 release, and pollination D. CO2 fixation, fertilization, and the release of sodium