Quiz: Environmental Toxicology and Pollution

1.

The thinning of the ozone layer is most pronounced over:

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

3.

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

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

5.

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

6.

Which type of radiation is most harmful to living organisms?

7.

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

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

9. Intake of lead may primarily cause the damage of

10.

Eutrophication in lakes is primarily caused by excessive input of:

1. Nitrogen

2. phosphorus

3.  Carbon dioxide

4. Heavy metals

5. Pesticides

11.

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

12.

Which of the following is NOT a greenhouse gas?

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