Posted inQuiz Quiz: Environmental Toxicology and Pollution Posted by kanwar July 13, 2024No Comments 0 votes, 0 avg 31 Environmental Toxicology Test your knowledge of environmental pollutants, their impacts, and international efforts to mitigate their effects. This quiz covers topics ranging from toxic substances to global treaties. 1 / 13 1. Which type of radiation is most harmful to living organisms? A. Gamma radiation B. Beta radiation C. Infrared radiation D. Alpha radiation 2 / 13 2. The thinning of the ozone layer is most pronounced over: A. The Arctic B. Antarctica C. The tropics D. The equator 3 / 13 3. Which of the following is an example of a non-point source of pollution? A. Runoff from agricultural fields B. Factory discharge pipe C. Municipal sewage treatment plant D. Leaking underground storage tank 4 / 13 4. The phenomenon of acid rain is primarily caused by emissions of: A. Volatile organic compounds (VOCs) B. Sulfur dioxide and nitrogen oxides C. Carbon monoxide and methane D. Chlorofluorocarbons (CFCs) 5 / 13 5. The ionizing radiation, which affects the activities of most of the enzymes is due to A. Interaction of ฮฑ-particles, ฮฒ-and ฮณ-rays with enzymes B. Photoemission of electron C. Interaction of radiation with tissues. D. Interaction of electron with body. Ionizing radiation directly damages enzymes by breaking bonds and altering their structure. 6 / 13 6. The Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production of: A. HFCs B. SF6 C. Carbon dioxide D. Chlorofluorocarbons (CFCs) 7 / 13 7. The use of anthropoid hazard chemicals like DDT causes reduction in fish populationbecause the chemical mimics the effect of A. Luteinizing hormone B. All of the above C. Estrogen D. Testosterone DDT is an endocrine disruptor that mimics the effects of estrogen, leading to reproductive problems in fish. 8 / 13 8. The process of removing pollutants from industrial wastewater before discharge is called: A. Phytoremediation B. Bioremediation C. Effluent treatment D. Incineration 9 / 13 9. Intake of lead may primarily cause the damage of A. Brain B. Liver C. Lung D. Kidney Lead is a neurotoxin that primarily affects the brain, especially in developing children. 10 / 13 10. Which of the following is NOT a greenhouse gas? A. Methane B. Sulfur dioxide C. Carbon dioxide D. Nitrous oxide 11 / 13 11. Which of the following is NOT a major source of heavy metal pollution in aquatic ecosystems? A. Natural weathering of rocks B. Atmospheric deposition C. Industrial effluents D. Agricultural runoff 12 / 13 12. Eutrophication in lakes is primarily caused by excessive input of:Nitrogenphosphorusย Carbon dioxideHeavy metalsPesticides A. 2 & 5 B. 1, 2 & 3 C. 1 & 2 D. 1,2,3,4 & 5 13 / 13 13. Biomagnification of persistent organic pollutants (POPs) in food webs primarily affects: A. Decomposers B. Herbivores C. Primary producers D. Top predators Your score isThe average score is 68% 0% Restart quiz Author kanwar Kanwar Bhan Godara UGC NET JRF Environmental Science View all posts kanwar Kanwar Bhan Godara UGC NET JRF Environmental Science View All Posts Post navigation Previous Post QUIZ: Environmental ModellingNext PostQuiz: Environmental Microbiology