The minimum dissolved oxygen required in water to save the aquatic life -
(a) 1 ppm
(b) 2 ppm
(c) 4 ppm
(d) 8 ppm.
The correct Answer Is
(c) 4 ppm
(a) 1 ppm
(b) 2 ppm
(c) 4 ppm
(d) 8 ppm.
The correct Answer Is
(c) 4 ppm
The minimum dissolved oxygen required in water to save the aquatic life -
- Thread starter Dnyan Deshmukh
- Start date
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