Quiz: Environmental Toxicology and Pollution

1.

Eutrophication in lakes is primarily caused by excessive input of:

1. Nitrogen

2. phosphorus

3.  Carbon dioxide

4. Heavy metals

5. Pesticides

2.

The thinning of the ozone layer is most pronounced over:

3. Intake of lead may primarily cause the damage of

4.

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

5.

Which type of radiation is most harmful to living organisms?

6.

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

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

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

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

10.

Which of the following is NOT a greenhouse gas?

11.

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

12.

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

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