Question

part 5: carbon & nitrogen cycles
part a. sort the following processes into the correct cycle: photosynthesis, combustion, respiration, decomposition, nitrogen fixation, denitrification

carbon cycle: ____________________
nitrogen cycle: ____________________

Explanation:

Photosynthesis takes in carbon - dioxide and releases oxygen, combustion releases carbon - dioxide, respiration releases carbon - dioxide, and decomposition also involves carbon compounds, so they are part of the carbon cycle. Nitrogen fixation converts atmospheric nitrogen into a usable form and denitrification converts nitrates back to nitrogen gas, which are key processes in the nitrogen cycle.

Answer:

Carbon Cycle: photosynthesis, combustion, respiration, decomposition
Nitrogen Cycle: nitrogen fixation, denitrification