Chemical Engineering - Environmental Engineering - Discussion

Discussion Forum : Environmental Engineering - Section 3 (Q.No. 2)
2.
For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
10000
5
500
1000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Parth said:   7 years ago
It should be 500 ppm.

Rohit said:   7 years ago
It is 4 ppm.

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