Disease aggravated by pollution is

What is the $BOD$ limit prescribed by the $CPCB$ for natural water bodies into which municipal waste is discharged?

Identify the $INCORRECT$ statement about Biological Oxygen Demand $(BOD)$.

Give information about Eutrophication.

The $BOD$ limit prescribed by the Central Pollution Control Board $(CPCB)$ for the discharge of industrial and municipal wastewater into natural surface water bodies is .....

Currently,the Government of India has approved the blending of alcohol in petrol. What percentage of alcohol blending in petrol has been approved?