Quiz: Environmental Toxicology and Pollution

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

2.

Eutrophication in lakes is primarily caused by excessive input of:

1. Nitrogen

2. phosphorus

3.  Carbon dioxide

4. Heavy metals

5. Pesticides

3.

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

4.

Which of the following is NOT a greenhouse gas?

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

6.

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

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

8.

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

9.

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

10.

Which type of radiation is most harmful to living organisms?

11. Intake of lead may primarily cause the damage of

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

13.

The thinning of the ozone layer is most pronounced over: