This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Atmospheric chemical changes that threaten biodiversityand global stability. A) Biological Magnification. B) Acid precipitation. C) Eutrophication. D) Invasive (introduced) species. E) Pollution. Show Answer Correct Answer: E) Pollution. 2. What is the purpose of ecosystem restoration? A) To destroy habitats. B) To assist the recovery of degraded ecosystems. C) To promote pollution. D) To increase urban development. Show Answer Correct Answer: B) To assist the recovery of degraded ecosystems. 3. Resistance refers to the ability of an ecosystem to recover from damage. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. Which human activity has probably contributed most to the acidification of lakes in forests? A) Passing environmental protection laws. B) Establishing reforestation projects in lumber areas. C) Burning fossil fuels that produce air pollution. D) Using pesticides for the control of insects that feed on trees. Show Answer Correct Answer: C) Burning fossil fuels that produce air pollution. 5. A large-scale dying out of a large percentage of all living organisms in an area within a short time. A) Mass Extinction. B) Background Extinction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Mass Extinction. 6. The genetic variation shown by Rauwolfia might be in terms of A) Potency of Reserpine. B) Concentration of Reserpine. C) Fragrance of Reserpine. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 7. Adding natural predators to a degraded ecosystem is called what??? A) Bioremediation. B) Biological augmentation. C) Endemic. D) Sustainable use. Show Answer Correct Answer: B) Biological augmentation. 8. Water pollution that occurs when substances rich in nitrogen and phosphorous flow into waterways which causes a dense growth of plant life and death of animal life from lack of oxygen. A) Endemication. B) Oligiotrophication. C) Eutrophication. D) Suffocation. Show Answer Correct Answer: C) Eutrophication. 9. What is the environmental condition that kills individuals without the adaptation? A) Artificial selection. B) Selective pressure. C) Genetic mutation. D) Habitat destruction. Show Answer Correct Answer: B) Selective pressure. 10. Which level of the food chain is most affected by biomagnification? A) Producers. B) Primary consumers. C) Secondary consumers. D) Tertiary consumers. Show Answer Correct Answer: D) Tertiary consumers. 11. According to the passage, the relationship between species richness (S) and area (A) on a logarithmic scale is described by the equation:log S = log C + Z log A. Fill in the blanks:S = $C \times A^{Z}$ A) C, Z. B) Z, C. C) A, C. D) S, Z. Show Answer Correct Answer: A) C, Z. 12. What is the major law in the United States that protects biodiversity? A) Convention on Biological Diversity. B) Endangered Species Act. C) US Fish and Wildlife Service. D) Species Survival Plan. Show Answer Correct Answer: B) Endangered Species Act. 13. A common trait of an invasive species is A) Only live in one environment. B) Limited diet. C) Fast growth and reproduction. D) Native to the area. Show Answer Correct Answer: C) Fast growth and reproduction. 14. In which area of the world would I expect to see more biodiversity? A) North Pole. B) Pennsylvania. C) Sahara Desert. D) Amazon Rainforest. Show Answer Correct Answer: D) Amazon Rainforest. 15. What happens during biomagnification? A) Scientists use microscopes to look at pollutants. B) Pollutants increase in concentration as they move up the food chain. C) Water-soluble pollutants become more concentrated. D) Animals in the food chain become larger. Show Answer Correct Answer: B) Pollutants increase in concentration as they move up the food chain. 16. Temporary or permanent removal of large expanses of forest for agriculture, settlements, or other uses A) Tree plantation. B) Deforestation. C) Old growth/primary forest. D) Second growth forest. Show Answer Correct Answer: B) Deforestation. 17. What effect, if any, would the extinction of a mutualistic pollinator have on the plant it pollinates? A) No effect. B) Decreased pollinate. C) No effect because substitute pollinator is available. D) The plant would not be pollinated. Show Answer Correct Answer: D) The plant would not be pollinated. 18. There is a plan to establish an 8000-kilometer-long strip of land across eight southeast Asian countries to rejoin fragments of tiger habitat. This is an example of a A) Wildlife corridor. B) Worldwide biodiversity treaty. C) Captive breeding program. D) Conservation concession. Show Answer Correct Answer: A) Wildlife corridor. 19. The approach of conservation, where the whole ecosystem is protected, in order to conserve the biodiversity at all levels is called as ..... approach. A) In situ conservation. B) Ex situ conservation. C) All the above. D) None of the above. Show Answer Correct Answer: A) In situ conservation. 20. Likely to become endangered soon through all or part of its range A) Endangered. B) Threatened. C) All the above. D) None of the above. Show Answer Correct Answer: B) Threatened. 21. What is the focus of sustainable land use? A) Harming the environment. B) Promoting urban sprawl. C) Depleting natural resources. D) Using land without damaging the environment. Show Answer Correct Answer: D) Using land without damaging the environment. 22. Which activity does not directly contribute to deforestation? A) Logging. B) Mining. C) Recycling. D) Urbanization. Show Answer Correct Answer: C) Recycling. 23. What is the definition of an invasive species? A) A species that spreads quickly and harms the environment. B) A species that is native to an area. C) A species that helps in pollination. D) A species that is endangered. Show Answer Correct Answer: A) A species that spreads quickly and harms the environment. 24. Any natural resource available in limited amounts or replaced extremely slowly by natural processes is called: A) Nonrenewable Resources. B) Renewable Resources. C) Endemic Resources. D) Natural Resources. Show Answer Correct Answer: A) Nonrenewable Resources. 25. Select the response that IS NOT an effect of the Amazon wildfires. A) Habitat loss. B) Temperature increases. C) Soil erosion and landslides. D) Plant regrowth and expansion. Show Answer Correct Answer: D) Plant regrowth and expansion. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 15 Biodiversity And Conservation Quiz 1Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 2Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 3Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 4Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 5Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 6Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 7Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 8Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 9Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books