Question
Question: Water with a dissolved oxygen content (DO) of 8 to 9 ppm is considered -...
Water with a dissolved oxygen content (DO) of 8 to 9 ppm is considered -
A
Moderately polluted
B
Slightly polluted
C
Good
D
Gravely polluted
Answer
Good
Water with a dissolved oxygen content (DO) of 8 to 9 ppm is considered -
Moderately polluted
Slightly polluted
Good
Gravely polluted
Good