This quiz works best with JavaScript enabled. Home > Science > Environment > Ecology Biodiversity Conservation Environmental Issues – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Biodiversity Conservation Environmental Issues Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which bacterium found in soil is anaerobic? A) Clostridium Sp. B) Thiobacillus Sp. C) Azatobacter Sp. D) Bacillus Sp. Show Answer Correct Answer: A) Clostridium Sp. 2. "Double digging" is a method of A) Bio-intensive agriculture. B) Aforestation. C) Deforestation. D) Water conservation. Show Answer Correct Answer: A) Bio-intensive agriculture. 3. In India, an Environment Impact Assessment report of a proposed mining project after environmental clearance is applicable for a maximal period of how many years? A) 5 years. B) 10 years. C) 30 years. D) 2 years. Show Answer Correct Answer: C) 30 years. 4. A change in a population's gene pool over time is called A) Microevolution. B) Inorganic evolution. C) Macroevolution. D) Chemical evolution. Show Answer Correct Answer: A) Microevolution. 5. Freshwater ecosystems are nutritionally limited by A) Iron and Nitrogen. B) Phosphorous and Carbon. C) Nitrogen and Calcium. D) Phosphorous and Iron. Show Answer Correct Answer: D) Phosphorous and Iron. 6. Which of the following pollutants can cause cancer in humans? A) Pesticides. B) Mercury. C) Ozone. D) Lead. Show Answer Correct Answer: A) Pesticides. 7. Identify the correct pair A) Ecotope - Transition between two ecosystems. B) Edaphic - Saline soil. C) Ecotone - Particular type of soil. D) Heliophytes - Photophilic plants. Show Answer Correct Answer: A) Ecotope - Transition between two ecosystems. 8. Which of the following ecosystems has the lowest net primary production per square metre? A) A tropical rain forest. B) A grassland. C) An open ocean. D) A coral reef. Show Answer Correct Answer: C) An open ocean. 9. The Nairobi Convention is for protection, management and development of which of the following? A) Marine environment. B) Desert Biomes. C) Coastal and Inland wetlands. D) Arcticand Antarctic. Show Answer Correct Answer: A) Marine environment. 10. The Motor Vehicles Act 1938 was amended in which year? A) 1972. B) 1980. C) 1988. D) 1986. Show Answer Correct Answer: C) 1988. 11. Which one of the following is not the goal of sustainable agriculture in India? A) Maintaining productive topsoil. B) Keep farms economically viable. C) Mechanised farming. D) Reduce the use of chemical fertilizer and pesticides. Show Answer Correct Answer: C) Mechanised farming. 12. Which of the following phenomena is not a natural hazard? A) Wildfire. B) Lightning. C) Landslide. D) Chemical contamination. Show Answer Correct Answer: D) Chemical contamination. 13. The Global Warming Potential (GWP) is the least for which of the following greenhouse gases? A) CH4. B) CO2. C) N2O. D) SF6. Show Answer Correct Answer: B) CO2. 14. Identify the pair (element-health effect) which is correctly matched A) Lead - Methaemoglobinemia. B) Arsenic - Kidney damage. C) Mercury - Nervous disorder. D) PAN - Hypoxemia. Show Answer Correct Answer: D) PAN - Hypoxemia. 15. The pyramid of biomass is invented in A) Forest ecosystem. B) Greenlandecosystem. C) Aquatic ecosystem. D) All of the above. Show Answer Correct Answer: C) Aquatic ecosystem. 16. Maximum carbon in the world is found in A) Oceans. B) Coal mines. C) Antarctica. D) Forests. Show Answer Correct Answer: A) Oceans. 17. Parasites which initiate production of antibodies within hosts are termed as A) Endoparasites. B) Pathogenic parasites. C) Homoparasites. D) Zooparasites. Show Answer Correct Answer: B) Pathogenic parasites. 18. United Nations Conference on Environment, also termed as Earth Summit, was held in 1992 in which city? A) Kyoto. B) Copenhagen. C) Stockholm. D) Rio de Janeiro. Show Answer Correct Answer: D) Rio de Janeiro. 19. Which of the following parameters is not an indicator of water vapour present in a certain quantity of air? A) Dew point. B) Potential temperature. C) Virtual temperature. D) Wet bulb temperature. Show Answer Correct Answer: B) Potential temperature. 20. The energy released during combustion of methane is ~ 900 kJ/mol. The carbon intensity of methane is A) ~ 0.05 gram C/kJ. B) ~ 0.013 gram C/kJ. C) ~ 1.08 gram C/kJ. D) ~ 0.018 gram C/kJ. Show Answer Correct Answer: B) ~ 0.013 gram C/kJ. 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