Question 1: What do you mean by Pollutants? Give various types of water pollutants that lead to pollution of water.
Question 2: Why the D.O. level of water body drops when high-organic load discharged into it?
Question 3: Illustrate what are water borne diseases? Explain why MPN test is conducted?
Question 4: Explain the term eutrophication and how it leads to aging of a lake?
Question 5: Illustrate bio-magnification and bioaccumulation of pesticides? Give the toxicity effects of various groups of pesticides.
Question 6: What do you mean by marine pollution? Explain the effects of oil pollution on marine organisms.
Question 7: Give the source of heavy metal pollution and its effect of heavy metals on animals and plants.