Ques. Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters, is
A. < 30 ppm
B. < 3.0 ppm
C. < 10 ppm
D. < 100 ppm.
Answer:A
Ques. Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters, is
A. < 30 ppm B. < 3.0 ppm C. < 10 ppm D. < 100 ppm.