Question

The BOD Value (in ppm) of a average sewage water is - a) 500, b) 400, c)40-50,d) 100-150​

Answer 1

B. Forests. C. Water. D. Wildlife. 3. Harnessing of nuclear energy often causes ... C. intermediate trophic level ... B. 400 ppm. C. 500 ppm ... A. pollution of water due to sewage of industrial wastes.

Answer 2

answer chahiye hamko eska