This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 16 Environmental Issues – Quiz 66 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 16 Environmental Issues Quiz 66 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How much surface do forests approximately cover on the Earth's land? A) 20%. B) 15%. C) 30%. D) 50%. Show Answer Correct Answer: C) 30%. 2. How do biodegradable electronics help the planet? A) Reduce waste. B) Increase toxins. C) Waste energy. D) Block recycling. Show Answer Correct Answer: A) Reduce waste. 3. Many companies are investing in ..... technologies to reduce their ecological footprint. A) Sustenance. B) Sustain. C) Sustainable. D) Sustainability. E) Sustaining. Show Answer Correct Answer: C) Sustainable. 4. What happened in Chernobyl, Ukraine in 1986? A) A nuclear bomb was dropped into the city releasing deadly radioactive nuclear material into the atmosphere. B) A nuclear reactor exploded, but all radioactive nuclear material was safely contained. C) A nuclear reactor exploded releasing deadly radioactive nuclear material into the atmosphere. D) None of the above. Show Answer Correct Answer: C) A nuclear reactor exploded releasing deadly radioactive nuclear material into the atmosphere. 5. As a population grows, the demand for resources A) Stay the same. B) Decreases. C) Increases. D) None of the above. Show Answer Correct Answer: C) Increases. 6. How has Saudi Arabia and other oil wealthy nations in the Middle East addressed their water crisis? A) Importing water. B) Removing dams on rivers. C) Desalination. D) Draining underground aquifers. Show Answer Correct Answer: C) Desalination. 7. What is the main cause of acid rain in Canada's Great Lakes region? A) Burning of fossil fuels (factories and cars). B) Dumping of garbage. C) Pesticide run off. D) Cutting down treesTagsSS6G6. Show Answer Correct Answer: A) Burning of fossil fuels (factories and cars). 8. What is the estimated annual deforestation rate according to the text? A) 20 million hectares. B) 5 million hectares. C) 10 million hectares. D) 15 million hectares. Show Answer Correct Answer: A) 20 million hectares. 9. Where is the largest nature reserve? A) In Russia. B) In USA. C) In Australia. D) In Canada. Show Answer Correct Answer: B) In USA. 10. In 2015, the President of Brazil claimed that deforestation in the Amazon had fallen by how much? A) 79%. B) 59%. C) 83%. D) 86%. Show Answer Correct Answer: C) 83%. 11. 80% of Mexico's exports are shipped to which country? A) US. B) Venezuela. C) Cuba. D) Brazil. Show Answer Correct Answer: A) US. 12. What part of a river system has salty water? A) Estuary. B) Flood plain. C) Tributaries. D) Watershed. Show Answer Correct Answer: A) Estuary. 13. What is the environmental issue that the Black Forest is facing? A) Radioactive contamination of waterways. B) Acid rain due to nuclear fallout. C) Acid rain due air pollution from industries and high population density. D) Deforestation due to logging and building of highways. Show Answer Correct Answer: C) Acid rain due air pollution from industries and high population density. 14. What problem do the Sierra Madre Mountains cause Mexico City? A) Traps the pollution in the city since it can't be blow away by wind. B) Stops the water from flowing to the rivers. C) Allows the air pollution to be blown away by the winds. D) None of the above. Show Answer Correct Answer: A) Traps the pollution in the city since it can't be blow away by wind. 15. Arable means suitable for growing crops A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Polluted water from a factory has flowed into a river. The water pollution will affect the river in all of the following ways EXCEPT A) Increasing the number of fish that live in the river. B) Increasing the amount of poisons in the water. C) Decreasing the drinkability of the water supply. D) Increasing the possible number of sick children who live near the river. Show Answer Correct Answer: A) Increasing the number of fish that live in the river. 17. This environmental issue occurred in 1986 in Chernobyl, Ukraine. A) Smog. B) Noise Pollution. C) Nuclear Power Plant explosion. D) Acid Rain. Show Answer Correct Answer: C) Nuclear Power Plant explosion. 18. If the Canadian Shield is rich in minerals, which environmental issue would be most likely to occur? A) Acid Rain. B) Water Pollution. C) Overmining. D) Nuclear Radiation. Show Answer Correct Answer: C) Overmining. 19. What word refers to all the non-domesticated plants and animals living in an area? A) Species. B) Local. C) Wildlife. D) None of the above. Show Answer Correct Answer: C) Wildlife. 20. Deforestation causes which of the following affects? A) Pollution of water sources. B) Habitat loss for wildlife. C) Erosion. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. ..... is one of the ten most water scarce countries in the world. A) Iraq. B) Syria. C) Turkey. D) Jordan. E) Saudi Arabia. Show Answer Correct Answer: D) Jordan. 22. Which answer is not a type of environmental issue A) Pollution. B) Resources use. C) Population growth. D) Death rate. Show Answer Correct Answer: D) Death rate. 23. How does air pollution in the UK affect people's health? A) It causes stronger immune systems and fewer illnesses. B) It increases breathing problems like asthma and bronchitis. C) It makes people resistant to air-related diseases. D) It decreases allergies and coughs. Show Answer Correct Answer: B) It increases breathing problems like asthma and bronchitis. 24. Besides factories, what else causes acid rain to pollute the air in southeastern Canada? A) Deforestation. B) Overfarming. C) Vehicle exhaust. D) Wind farms. Show Answer Correct Answer: C) Vehicle exhaust. 25. The greatest advantage of the Blue fin tuna is its ..... A) The fastest swimmer in the sea. B) It's warmblooded. C) It mates a lot. D) Its the most popular of fish and contributes greatly to the seas ecosystem. Show Answer Correct Answer: B) It's warmblooded. ← 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