This quiz works best with JavaScript enabled. Home > Science > Earth > Environmental Sciences – Quiz 458 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 458 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Denitrification is the process by which ..... A) Bacteria convert nitrates into N gas, releasing it into the atmosphere. B) Animals convert N gas into nitrates, releasing it into the atmosphere. C) Dead organisms break down and return carbon to the soil and atmosphere. D) Organic N is converted into oxygen during photosynthesis. Show Answer Correct Answer: A) Bacteria convert nitrates into N gas, releasing it into the atmosphere. 2. What is the process in which hot molten rock rises, then cools and sinks back to the core? A) Plate tectonics. B) Continental drift. C) Convection. D) Divergence. Show Answer Correct Answer: C) Convection. 3. 71% of earth surface is covered with: A) Land. B) Water. C) Coal. D) Forest. Show Answer Correct Answer: B) Water. 4. What is a harm of the industrial revolution? A) Burning fossil fuels. B) Loss of biodiversity. C) People moving off of farmland. D) Mass extinctions. Show Answer Correct Answer: A) Burning fossil fuels. 5. Which of the following is an example of how biomass fuel is currently being used? A) Biogas digesters ferment manure and produce methane. B) Dung-fired power stations produce electricity. C) Ethanol from fermenting corn is added to gasoline. D) All are acceptable choices. Show Answer Correct Answer: D) All are acceptable choices. 6. ..... is a useful product of photosynthesis, while ..... is released as a waste product. A) Oxygen, glucose. B) Glucose, oxygen. C) Carbon dioxide, glucose. D) Glucose, carbon dioxide. Show Answer Correct Answer: B) Glucose, oxygen. 7. What is considered "commons" ? A) A farmers land. B) Your cell phone. C) The ocean. D) Your house. Show Answer Correct Answer: C) The ocean. 8. If a primary consumer contains 1, 000 kcal of energy, the secondary consumer gains how much energy when it eats the primary consumer? A) 1, 000 kcal. B) 100 kcal. C) 10 kcal. D) 10, 000 kcal. Show Answer Correct Answer: B) 100 kcal. 9. Tragedy of the Commons can be prevented if A) The resource is used unsustainably. B) The resource is overused. C) The resource is managed and regulated to prevent overuse. D) The resource is taken away. Show Answer Correct Answer: C) The resource is managed and regulated to prevent overuse. 10. The Sikhote-Alin Mountains, and the Siberian tigers living on them, are separated from other mountain regions in which the tigers could live. The mountains are an example of a(n) A) Mass extinction. B) Habitat fragmentation. C) Invasive species. D) Mass extirpation. Show Answer Correct Answer: B) Habitat fragmentation. 11. Tiny, free-floating, marine algae A) Groundwater. B) River system. C) Phytoplankton. D) Sunlight. E) Surface zone. Show Answer Correct Answer: C) Phytoplankton. 12. What will happen to fossil fuel reserves if humans continue to burn them? A) The fossil fuel reserves will be quickly resupplied and so humans will never run out. B) The fossil fuel reserves will be completely depleted, or totally used up. C) The fossil fuel reserves will stay underground. D) The fossil fuel reserves will definitely NOT turn into carbon dioxide in Earth's atmosphere. Show Answer Correct Answer: B) The fossil fuel reserves will be completely depleted, or totally used up. 13. Where do humans get most of the water they use? A) Rivers and lakes. B) Water vapor. C) Polar ice caps. D) Groundwater. Show Answer Correct Answer: D) Groundwater. 14. Which variable is measured or counted and displayed on the Y axis? A) Independent. B) Dependent. Show Answer Correct Answer: B) Dependent. 15. The lungs and heart lie in the ..... A) Chest. B) Stomach. C) Head. D) Back. Show Answer Correct Answer: A) Chest. 16. Temperature increases with height in the ..... due to the ozone trapping heat. A) Troposphere. B) Stratosphere. C) Mesosphere. D) Thermosphere. Show Answer Correct Answer: B) Stratosphere. 17. Plants and animals in the tundra must be able to adapt to the extremely ..... weather A) Small. B) Cold. C) Perennials. D) Shallow. Show Answer Correct Answer: B) Cold. 18. What could happen when leaves and dead organisms build up in a pond? A) The pond becomes a lake. B) All the fish die. C) The pond may become a forest. D) The water gets more salty. Show Answer Correct Answer: C) The pond may become a forest. 19. Agenda 21 came out from the Earth Summit and was an agreement by A) Seven nations to halt CFC production in 1987. B) 90 nations to enhance global biodiversity in 2000. C) 178 nations for comprehensive sustainable development in 1992. D) 300 nations to limit trade in endangered species in 1985. Show Answer Correct Answer: C) 178 nations for comprehensive sustainable development in 1992. 20. Non-repeatable results A) Science. B) Pseudoscience. Show Answer Correct Answer: B) Pseudoscience. ← PreviousNext →Related QuizzesScience QuizzesEnvironmental Sciences Quiz 1Environmental Sciences Quiz 2Environmental Sciences Quiz 3Environmental Sciences Quiz 4Environmental Sciences Quiz 5Environmental Sciences Quiz 6Environmental Sciences Quiz 7Environmental Sciences Quiz 8Environmental Sciences Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books