This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not associated with the process of subduction? A) Formation of new crustal material. B) Formation of islands and mountains. C) Melting of crustal material. D) Volcanic activity. Show Answer Correct Answer: A) Formation of new crustal material. 2. An endangered species is A) One whose numbers are so small that it is at risk of extinction. B) One whose not been spotted after many years. C) One whose numbers are abundant. D) None of the above. Show Answer Correct Answer: A) One whose numbers are so small that it is at risk of extinction. 3. Numbers are declining, best describes a species that is ..... A) Threatened. B) Endangered. C) All the above. D) None of the above. Show Answer Correct Answer: A) Threatened. 4. The sum total of all organisms in an area, taking into account the variety of species, their genes, their populations, and their communities, is called ..... A) Species diversity. B) Biodiversity. C) Genetic diversity. D) Ecosystem health. Show Answer Correct Answer: B) Biodiversity. 5. Ecotourism is a form of tourism that supports the conservation and sustainable development of ecologically unique areas. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. An ENDEMIC species is only found in one specific geographic location. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. What is common to the following plants:Nepenthes, Psilotum, Rauwolfia, Acotinum A) All are ornamental plants. B) All are phylogenetic link species. C) All are prone to over exploitation. D) All are exclusively present in the eastern Himalayas. Show Answer Correct Answer: C) All are prone to over exploitation. 8. Humans benefit from the diversity of life in which of the following ways? A) By gaining resources such as food and medicine. B) By reducing the variety of species. C) By eliminating natural habitats. D) By decreasing ecosystem stability. Show Answer Correct Answer: A) By gaining resources such as food and medicine. 9. Provides functioning ecosystem that supply oxygen, clean air and water, pollination of plants, pest control, waste water treatment and many ecosystem services. A) ECOLOGICAL LIFE SUPPORT. B) WILDLIFE CONSERVATION. C) WATER CONSERVATION. D) SOIL CONSERVATION. Show Answer Correct Answer: A) ECOLOGICAL LIFE SUPPORT. 10. Which one of the following is an example of alien species invading a new ecosystem resulting in biodiversity losses A) Introduction of Nile perch into Lake Victoria in East Africa. B) Introducing a water hyacinth into India. C) Introduction of African catfish into Indian rivers. D) All of the above. Show Answer Correct Answer: D) All of the above. 11. Numbers are very low, Close to extinction, best describes a species that is ..... A) Threatened. B) Endangered. C) All the above. D) None of the above. Show Answer Correct Answer: B) Endangered. 12. Which of the following is not an outcome of human-wildlife conflict? A) Destruction of habitats. B) Biodiversity increase. C) Injury to humans and animals. D) Damage to property and crops. Show Answer Correct Answer: B) Biodiversity increase. 13. A species-area relation is used by ecologists to- A) Determine the population density of a species in a certain habitat. B) Examine how human populations are growing. C) Estimate the number of species extinctions resulting from habitat destruction. D) None. Show Answer Correct Answer: C) Estimate the number of species extinctions resulting from habitat destruction. 14. What is the main focus of supporting conservation projects? A) To harm ecosystems. B) To benefit the entire ecosystem. C) To increase pollution. D) To promote urban development. Show Answer Correct Answer: B) To benefit the entire ecosystem. 15. According to the passage, what is the main reason for the accelerated rates of species extinctions in the world today? A) Human activities. B) Natural climate cycles. C) Volcanic eruptions. D) Solar flares. Show Answer Correct Answer: A) Human activities. 16. The imperial eagle eats ..... A) Sausages and fish. B) Cows, horses and crocodriles. C) Hervibores and plants. D) Rabbits, small birds and reptiles. Show Answer Correct Answer: D) Rabbits, small birds and reptiles. 17. Which of the following is considered a hotspot of Biodiversity in India? A) Arawalli hills. B) Eastern ghats. C) Western ghats. D) Indo-Gangetic plain. Show Answer Correct Answer: C) Western ghats. 18. Which of the following is a tool used by biodiversity scientists? A) Nuclear physics. B) Blockchain technology. C) Machine learning. D) Quantum computing. Show Answer Correct Answer: C) Machine learning. 19. Which of the following is the largest taxon among plants in terms of the number of species A) Algae. B) Mosses. C) Ferns. D) Fungi. Show Answer Correct Answer: D) Fungi. 20. What would Earth be like without the greenhouse effect? A) Too cold to be habitable. B) A little cooler than it is now. C) The same temperature as it is now. D) A little warmer than it is now. Show Answer Correct Answer: A) Too cold to be habitable. 21. Scientists think people have directly caused the extinction of some species through ..... A) Habitat destruction. B) Poaching. C) Pollution. D) All of these. Show Answer Correct Answer: D) All of these. 22. By far, the biggest cause of biodiversity loss today is A) Climate change. B) Overharvesting. C) Habitat change and fragmentation. D) Pollution. Show Answer Correct Answer: C) Habitat change and fragmentation. 23. An event in which a large percentage of all living species become extinct in a relatively short period of time is called ..... A) Species Extinction. B) Mass Extinction. C) Ecosystem Extinction. D) Extinction. Show Answer Correct Answer: B) Mass Extinction. 24. The U.S. has signed the Biodiversity Treaty. Have they ratified it and made it law? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 25. Which is the highest level of biodiversity? A) General diversity. B) Ecosystem diversity. C) Species diversity. D) Genetic diversity. Show Answer Correct Answer: B) Ecosystem diversity. ← 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