NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Environmental Chemistry
NEET · Chemistry · Environmental Chemistry
What happens to dissolved oxygen in water during the night?
What happens to dissolved oxygen in water during the night?
Options
- AIt increases due to bacterial respiration.
- BIt remains constant.
- CIt decreases due to bacterial respiration.
- DIt increases due to photosynthesis.
Correct answer
C. It decreases due to bacterial respiration.
Step-by-step solution
During the night, photosynthesis stops, but aquatic plants and microorganisms continue to respire, leading to a reduction in dissolved oxygen in the water.