Which of the following statements is (are) TRUE for carbon, nitrogen and phosphorus cycles?
You can select up to 2 statements
a. COâ‚‚ is produced via respiration as a by-product al
b. The carbon, nitrogen and phosphorus cycles all have a gaseous phase.
c. Nitrogen can be cycled without the involvement of bacteria.
d. Phosphate can be assimilated by plants
e. Nitrogen in its gas form (Nâ‚‚) can be assimilated by plants.
