Question

which process plays an important role in the biogeochemical cycles of carbon, nitrogen, and phosphorus?
photosynthesis
transpiration
decomposition
respiration

Explanation:

• Photosynthesis: Mainly involves carbon fixation (for carbon cycle) but not a key process for nitrogen and phosphorus cycles.
• Transpiration: Involves water movement in plants, not related to carbon, nitrogen, or phosphorus cycles.
• Decomposition: Decomposers break down organic matter, releasing carbon, nitrogen, and phosphorus back into the environment, playing a crucial role in all three biogeochemical cycles.
• Respiration: Releases carbon (from carbon cycle) but not a major process for nitrogen and phosphorus cycles.

Answer:

C. decomposition