This quiz works best with JavaScript enabled. Home > Science > Environment > Ecology Biodiversity Conservation Environmental Issues – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Biodiversity Conservation Environmental Issues Quiz 8 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The tendency of biological systems to resist change and to remain in a state of equilibrium is called A) Ecological efficiency. B) Carrying capacity. C) Homeostatis. D) Feedback mechanism. Show Answer Correct Answer: C) Homeostatis. 2. The Keystone predator species maintain diversity in a community by A) Preying on community's dominant species. B) Coevolving with their prey. C) Allowing immigration of other predators. D) Competitively excluding other predators. Show Answer Correct Answer: A) Preying on community's dominant species. 3. Agent orange is a A) Weedicide. B) Fungicide. C) Nematicide. D) Rodenticide. Show Answer Correct Answer: A) Weedicide. 4. The method for down streaming of ethanol from fermentation broth is A) Filtration. B) Flame Photometry. C) Distillation. D) Flow cytometry. Show Answer Correct Answer: C) Distillation. 5. The rate of replacement of species along a gradient of habitats pertains to A) Alpha diversity. B) Beta diversity. C) Gamma diversity. D) Species diversity. Show Answer Correct Answer: B) Beta diversity. 6. Which one of the following National Parks has a climate that varies from tropical to subtropical, temperate and arctic? A) Nandadevi National Park. B) Neora Valley National Park. C) Khangchendzonga National Park. D) Namdapha National Park. Show Answer Correct Answer: D) Namdapha National Park. 7. Which one of the following is a complex in organic fertilizer? A) Urea. B) Super phosphate. C) Potash. D) NPK. Show Answer Correct Answer: D) NPK. 8. Largest amount of fresh water is present in A) Lakes. B) Rivers. C) Glaciers. D) Polar Ice. Show Answer Correct Answer: D) Polar Ice. 9. In Environmental assessment study, interpretation and evaluation should consider A) Significance of measured impacts. B) Comparison of alternatives. C) Uncertainty of possible impacts. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. World Meteorological Organization's (WMO) objective has been to reduce the number of deaths due to hydro meteorological disasters over the decade 2010-2019 by (with reference to the decade 1994-2003) A) 25 %. B) 50 %. C) 75 %. D) 80 %. Show Answer Correct Answer: B) 50 %. 11. The net primary productivity of an ecosystem is A) The gross primary productivity minus plant respiration. B) The productivity at top consumer level minus respiration at all levels. C) The primary productivity at herbivore level. D) The primary productivity at consumer level. Show Answer Correct Answer: A) The gross primary productivity minus plant respiration. 12. The Stockholm Convention is a global treaty to protect humans from A) Toxic gases. B) Carbon monoxide. C) Persistent organic pollutants. D) Hospital acquired infections. Show Answer Correct Answer: C) Persistent organic pollutants. 13. How many mega-bio-diverse countries have been identified in the world? A) 35. B) 2. C) 17. D) 12. Show Answer Correct Answer: C) 17. 14. In which year Wildlife Protection Act was enacted? A) 1962. B) 1972. C) 1992. D) 1982. Show Answer Correct Answer: B) 1972. 15. Limnetic zone in freshwater ecosystem is characterised by A) Presence of rooted vegetation. B) Absence of rooted vegetation. C) Absence of phytoplankton. D) Presence of large proportion of lime. Show Answer Correct Answer: B) Absence of rooted vegetation. 16. Carbon dioxide evolved from soil mainly comes from A) Root respiration. B) Soil animals respiration. C) Microbial respiration. D) All the above. Show Answer Correct Answer: C) Microbial respiration. 17. Municipal Solid Wastes (MSWs) have the heating value typically in the range A) 9,300 to 12,800 kJ/kg. B) 1000 to 2500 kJ/kg. C) 1780 to 2830 kJ/kg. D) 530 to 780 kJ/kg. Show Answer Correct Answer: A) 9,300 to 12,800 kJ/kg. 18. An expert committee report "Drowning a valley: Destroying a civilization" is related to which dam project? A) Sardar Sarovar Dam. B) Hirakud Dam. C) Alamatti. D) Nagarjuna Sagar Dam. Show Answer Correct Answer: A) Sardar Sarovar Dam. 19. Pulmonary oedema is caused by A) Methane. B) Nitrous oxide. C) Sulphur dioxide. D) Carbon monoxide. Show Answer Correct Answer: B) Nitrous oxide. 20. Which of the following is not a type of ex situ conservation method? A) Botanical garden. B) Gene banks. C) Wildlife sanctuaries. D) Zoological park. Show Answer Correct Answer: C) Wildlife sanctuaries. ← PreviousNext →Related QuizzesScience QuizzesEcology Biodiversity Conservation Environmental Issues Quiz 1Ecology Biodiversity Conservation Environmental Issues Quiz 2Ecology Biodiversity Conservation Environmental Issues Quiz 3Ecology Biodiversity Conservation Environmental Issues Quiz 4Ecology Biodiversity Conservation Environmental Issues Quiz 5Ecology Biodiversity Conservation Environmental Issues Quiz 6Ecology Biodiversity Conservation Environmental Issues Quiz 7Ecology Biodiversity Conservation Environmental Issues Quiz 9Ecology Biodiversity Conservation Environmental Issues Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books