This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 16 Environmental Issues – Quiz 33 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 16 Environmental Issues Quiz 33 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Big fishers cast nets big enough to hold how many tons of tuna? A) 500 tons. B) 800 tons. C) 1, 000 tons. D) 1, 200 tons. Show Answer Correct Answer: A) 500 tons. 2. An increase in the level of greenhouse gases has led to considerable heating of the earth leading to A) Ozone depletion. B) Global warming. C) Skin cancer. D) Both Ozone depletion and Global warming. Show Answer Correct Answer: B) Global warming. 3. One of the main causes of desertification is ..... A) Storing water indoors. B) Overgrazing of livestock. C) Clearing trees for larger cities. D) People irrigating their farms. Show Answer Correct Answer: B) Overgrazing of livestock. 4. The Chernobyl blast released 100 times more radiation than the two atomic bombs released over Japan near the end of WWII! A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. Monsoons ( seasonal winds) bring heavy rainfall which leads to what? A) Flooding. B) Dried up fields. C) Better crops to be produced. D) None of the above. Show Answer Correct Answer: A) Flooding. 6. What is the name of the gas that plants and trees take in? A) Methane. B) Carbon Dioxide. C) All the above. D) None of the above. Show Answer Correct Answer: B) Carbon Dioxide. 7. The advance of desertlike conditions into areas that previously were fertile. A) Landification. B) Desertification. C) Fertilizer. D) Incineration. Show Answer Correct Answer: B) Desertification. 8. Mexico City lies at the base of two mountain ranges that traps the A) Air pollution. B) Vehicle emissions. C) Soot. D) Mercury. Show Answer Correct Answer: A) Air pollution. 9. Many cases of cancer have been linked to the nuclear disaster in Chernobyl. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. What is the issue with the laws Brazil has passed to help prevent their environmental issue? A) The citizens cannot afford to buy the cars that pollute less. B) Lack of funding to enforce the laws. C) It cannot afford to buy all its citizens masks. D) Officials of the country cannot agree with the type of filters to use on its factories. Show Answer Correct Answer: B) Lack of funding to enforce the laws. 11. Save energy. Don't ..... the lights you don't need them. A) Pick up. B) Turn off. C) Turn down. D) Turn on. Show Answer Correct Answer: D) Turn on. 12. Brazil is able to produce steel and then make cars, machines, and other goods because it has vast deposits of which resource? A) Iron ore. B) Oil. C) Silver. D) Gold. Show Answer Correct Answer: A) Iron ore. 13. Less than ..... of the world fresh water is available to the people of Southwest Asia. A) 4%. B) 3%. C) 2%. D) 1%. Show Answer Correct Answer: D) 1%. 14. According to the WFN, the best projects must be practical, help local people, and be based on what? A) Good science. B) Social media trends. C) Cheap materials. D) Fast results. Show Answer Correct Answer: A) Good science. 15. How can Canadian citizens reduce air pollution? A) Walk. B) Use public transportation. C) Ride a bike. D) All of the above. Show Answer Correct Answer: B) Use public transportation. 16. Ocean acidification begins with A) Pollution from ships. B) Carbon dioxide released from combustion. C) Dumping of waste from cities into the ocean. D) None of the above. Show Answer Correct Answer: B) Carbon dioxide released from combustion. 17. Which European country is having massive air pollution problems? A) Germany. B) The United Kingdom. C) Spain. D) Russia. Show Answer Correct Answer: B) The United Kingdom. 18. Continued use of chemical fertilizer causes what to build up in soil? A) Silt. B) Salt. C) Animal waste. D) Rocks and gravel. Show Answer Correct Answer: B) Salt. 19. Where in Canada are the most valuable minerals found? A) Hudson Bay. B) Canadian Shield. C) Golden Horseshoe. D) St. Lawrence Seaway. Show Answer Correct Answer: B) Canadian Shield. 20. Which of the following is a significant contributor to CO2 emissions? A) Water wars. B) Ozone depletion. C) Industrial processes. D) Agricultural soil management. Show Answer Correct Answer: C) Industrial processes. 21. Pollution or waste released into the air, often by cars or factories A) Emissions. B) Arable. C) Radiation. D) Radioactive. Show Answer Correct Answer: A) Emissions. 22. Which of the following has NOT contributed to thepollution of the Great Lakes? A) Surface water runoff. B) Dumping of industrial waste. C) Acid rain. D) Loss of wildlife. Show Answer Correct Answer: D) Loss of wildlife. 23. Radon is ..... A) Is a layer of the upper atmosphere about 15-30 km above earth's surface. Chlorofluorocarbon-are human-made gasses that contain chlorine and fluorine. B) A layer of warm air prevents the rising air from escaping. C) Is a colorless, odorless gas that is radioactive. Formed naturally by certain rocks underground. D) None of the above. Show Answer Correct Answer: C) Is a colorless, odorless gas that is radioactive. Formed naturally by certain rocks underground. 24. Why is attention to health issues related to air and water pollution of critical importance in countries like China and India? A) Because they have small populations. B) Because they have no environmental issues. C) Because they have enormous populations. D) Because they have already solved their pollution problems. Show Answer Correct Answer: C) Because they have enormous populations. 25. What is pollution that comes out of cars called? A) Photosynthesis. B) Emissions. C) Accelerate. D) None of the above. Show Answer Correct Answer: B) Emissions. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 16 Environmental Issues Quiz 1Class 12 Biology Chapter 16 Environmental Issues Quiz 2Class 12 Biology Chapter 16 Environmental Issues Quiz 3Class 12 Biology Chapter 16 Environmental Issues Quiz 4Class 12 Biology Chapter 16 Environmental Issues Quiz 5Class 12 Biology Chapter 16 Environmental Issues Quiz 6Class 12 Biology Chapter 16 Environmental Issues Quiz 7Class 12 Biology Chapter 16 Environmental Issues Quiz 8Class 12 Biology Chapter 16 Environmental Issues Quiz 9Class 12 Biology Chapter 16 Environmental Issues Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books