By what method can the quantity of organic pollutants in water be determined?

Organic pollution in water is measured by

How can the extent of water pollution by organic wastes by determined?

An animal indicator of organic pollution of water is

What are the main inorganic and organic pollutants present in water ?

Less proportion of BOD in water is proportional to...? (A) Proportion of water pollution is more (B) Proportion of water pollution is less (C) Quantity of organic substances is more (D) Water is not considered potable

What is the method to treat polluted water?

The most common indicator organism of polluted water is :