Posted inQuiz Quiz: Environmental Toxicology and Pollution Posted by kanwar July 13, 2024No Comments 0 votes, 0 avg 20 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 The phenomenon of acid rain is primarily caused by emissions of: A. Chlorofluorocarbons (CFCs) B. Sulfur dioxide and nitrogen oxides C. Volatile organic compounds (VOCs) D. Carbon monoxide and methane 2 / 13 The use of anthropoid hazard chemicals like DDT causes reduction in fish population because the chemical mimics the effect of A. All of the above B. Estrogen C. Luteinizing hormone D. Testosterone DDT is an endocrine disruptor that mimics the effects of estrogen, leading to reproductive problems in fish. 3 / 13 Which of the following is NOT a major source of heavy metal pollution in aquatic ecosystems? A. Industrial effluents B. Atmospheric deposition C. Natural weathering of rocks D. Agricultural runoff 4 / 13 Which of the following is NOT a greenhouse gas? A. Sulfur dioxide B. Carbon dioxide C. Methane D. Nitrous oxide 5 / 13 Intake of lead may primarily cause the damage of A. Liver B. Kidney C. Lung D. Brain Lead is a neurotoxin that primarily affects the brain, especially in developing children. 6 / 13 The Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production of: A. SF6 B. Chlorofluorocarbons (CFCs) C. Carbon dioxide D. HFCs 7 / 13 Eutrophication in lakes is primarily caused by excessive input of: Nitrogen phosphorus ย Carbon dioxide Heavy metals Pesticides A. 1,2,3,4 & 5 B. 1 & 2 C. 2 & 5 D. 1, 2 & 3 8 / 13 The thinning of the ozone layer is most pronounced over: A. The equator B. The tropics C. The Arctic D. Antarctica 9 / 13 The ionizing radiation, which affects the activities of most of the enzymes is due to A. Interaction of radiation with tissues. B. Photoemission of electron C. Interaction of electron with body. D. Interaction of ฮฑ-particles, ฮฒ-and ฮณ-rays with enzymes Ionizing radiation directly damages enzymes by breaking bonds and altering their structure. 10 / 13 Biomagnification of persistent organic pollutants (POPs) in food webs primarily affects: A. Primary producers B. Herbivores C. Top predators D. Decomposers 11 / 13 Which type of radiation is most harmful to living organisms? A. Alpha radiation B. Gamma radiation C. Beta radiation D. Infrared radiation 12 / 13 Which of the following is an example of a non-point source of pollution? A. Factory discharge pipe B. Runoff from agricultural fields C. Leaking underground storage tank D. Municipal sewage treatment plant 13 / 13 The process of removing pollutants from industrial wastewater before discharge is called: A. Effluent treatment B. Phytoremediation C. Incineration D. Bioremediation Your score isThe average score is 75% 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