MCQ
What is the unique process which has supported life on this planet
- A$N_2$-fixation
- ✓Photosynthesis
- CProtein synthesis
- DRespiration
✓
Answer
Correct option: B.
Photosynthesis
b
(b) Because photosynthetic end products are organic materials and $O_2$ for respiration.
(b) Because photosynthetic end products are organic materials and $O_2$ for respiration.
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