Quiz: Environmental Toxicology and Pollution

1. Intake of lead may primarily cause the damage of

2. The ionizing radiation, which affects the activities of most of the enzymes is due to

3. The use of anthropoid hazard chemicals like DDT causes reduction in fish population
because the chemical mimics the effect of

4.

The process of removing pollutants from industrial wastewater before discharge is called:

5.

Which of the following is NOT a greenhouse gas?

6.

The Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production of:

7. Which of the following is NOT a major source of heavy metal pollution in aquatic ecosystems?

8.

The thinning of the ozone layer is most pronounced over:

9.

Which of the following is an example of a non-point source of pollution?

10.

Eutrophication in lakes is primarily caused by excessive input of:

1. Nitrogen

2. phosphorus

3.  Carbon dioxide

4. Heavy metals

5. Pesticides

11.

Which type of radiation is most harmful to living organisms?

12. Biomagnification of persistent organic pollutants (POPs) in food webs primarily affects:

13.

The phenomenon of acid rain is primarily caused by emissions of: