Match the stage of the oxygen cycle with the correct description.
Question 7 options:
All aerobic organisms use free oxygen for respiration
All green plants during the process of photosynthesis, release oxygen back into the atmosphere as a by-product
Animals exhale carbon dioxide back into the atmosphere which is again used by the plants during photosynthesis
1.
Stage 1
2.
Stage 2
3.
Stage 3
1. Stage 3
2. Stage 2
3. Stage 1