This quiz works best with JavaScript enabled. Home > Agriculture > Environment > General > Environmental Science – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Science Quiz 41 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why do shorter trees and plants that make up the understory in tropical rain forests have large, flat leaves? A) To shade themselves from excessive sunlight. B) To create habitat for forest insects. C) To offer protection from the rain. D) To allow maximum surface for light absorption. Show Answer Correct Answer: D) To allow maximum surface for light absorption. 2. Which of the following is NOT classified as one of the 3 major threats to the environment? A) Habitat Reconstruction. B) Resource Depletion. C) Pollution. D) Loss of Biodiversity. Show Answer Correct Answer: A) Habitat Reconstruction. 3. Pollution that is ..... will break down over time. A good example would be ..... A) Biodegradable / Grass clippings. B) Persistant / An aluminum can. C) Persistant / Lead. D) Biodegradable / A styrofoam box. Show Answer Correct Answer: A) Biodegradable / Grass clippings. 4. A scientist must remain objective so that ..... or personal belief does not affect their experimental results. A) Data. B) Ethics. C) Bias. D) Control group. Show Answer Correct Answer: C) Bias. 5. An idea must effectively explain a phenomenon, make accurate predictions in a wide range of situations, and have undergone extensive, rigorous testing, to be accepted as a scientific A) Ethic. B) Hypothesis. C) Theory. D) Prediction. Show Answer Correct Answer: C) Theory. 6. Corn can be a source of A) Hydropower. B) Ethanol. C) Photovoltaic power. D) Ground source heat. Show Answer Correct Answer: B) Ethanol. 7. An independent variable is A) The one that is measured. B) The one that the scientist changes. C) The one that is not measured. D) The one that is not included in the experiment. Show Answer Correct Answer: B) The one that the scientist changes. 8. Open pits called ..... are used to mine stone and gravel. A) Solar evaporation ponds. B) Cyanide heaps. C) Quarries. D) Overburdens. Show Answer Correct Answer: C) Quarries. 9. Most of the food in aquatic ecosystems is produced by ..... A) Phytoplankton. B) Zooplankton. C) Animals. D) Algae. Show Answer Correct Answer: A) Phytoplankton. 10. Animals are becoming extinct at ..... A) Faster than the past. B) The same rate as the past. C) No way to tell the rate. D) Slower than the past. Show Answer Correct Answer: A) Faster than the past. 11. What type of symbiosis?* Remora use suckers to attach temporarily to large marine animals such as sharks, manta rays, whales, turtles, or large fish.* The shark provides free transportation, protection, and dropped food and feces which the remora feeds on. The host is not injured. A) Predation. B) Parasitism. C) Mutualism. D) Commensalism. Show Answer Correct Answer: D) Commensalism. 12. Which of the following is NOT a world biome? A) Desert. B) Forest. C) Grassland. D) Swamp. Show Answer Correct Answer: D) Swamp. 13. Sunlight falls on a semiconductor, causing it to release electrons, in a A) Photovoltaic cell. B) Solar collector. C) Battery. D) Fuel cell. Show Answer Correct Answer: A) Photovoltaic cell. 14. "Tragedy of the Commons" addresses the conflicts associated with what environmental challenge? A) Curbing overpopulation. B) Preventing pollution. C) Protecting shared resources. D) Preserving biodiversity. Show Answer Correct Answer: C) Protecting shared resources. 15. What are some threats to biodiversity? A) Climate change, pollution, and greenhouse gasses. B) There are no threats. C) Fish. D) Just polutions. Show Answer Correct Answer: A) Climate change, pollution, and greenhouse gasses. 16. All of the following can limit a populations growth except ..... A) Lack of food. B) Drought. C) No shelter. D) Plenty of water. Show Answer Correct Answer: D) Plenty of water. 17. The ethical theory that humans are the most important thing on Earth is known as A) Envirocentrism. B) Anthropocentrism. C) Humancentrism. D) Ecocentrism. Show Answer Correct Answer: B) Anthropocentrism. 18. What percentage of Earths water is fresh water? A) 3%. B) 1%. C) 1.5%. D) 2.5%. Show Answer Correct Answer: D) 2.5%. 19. ..... is a formal way for the researcher to get comments and criticism from the scientific community. A) Ethics. B) Hypothesis. C) Peer review. D) Data. Show Answer Correct Answer: C) Peer review. 20. The vertical movement of cold, nutrient-rich water from the ocean depths to its surface is called A) Upwelling. B) Downwelling. C) Tides. D) Surface currents. Show Answer Correct Answer: A) Upwelling. 21. The maximum population of a particular species that an ecosystem can support indefinitely. A) Carrying capacity. B) Population growth. C) Limiting resource. D) Density dependent factor. Show Answer Correct Answer: A) Carrying capacity. 22. What is conservation? A) Use something again and again. B) Protect and use carefully. C) Turn it into something else. D) Use less of and item. Show Answer Correct Answer: B) Protect and use carefully. 23. Buildings, roads, schools and bridges are examples of the A) Anthropology. B) Ecology. C) Built environment. D) Natural environment. Show Answer Correct Answer: C) Built environment. 24. Which topic would an astronomer study? A) Rain. B) Pollution. C) Galaxies. D) Mountains. Show Answer Correct Answer: C) Galaxies. 25. All of the energy in an ecosystem comes from ..... A) Decomposers. B) Bacteria. C) Sun. D) Plants. Show Answer Correct Answer: C) Sun. 26. The Industrial Revolution increased the amount of ..... released into the air. A) Ozone. B) Oxygen. C) Carbon dioxide. D) Water vapor. Show Answer Correct Answer: C) Carbon dioxide. 27. Student has found the following information: * Blades of a turbine that is turned by water* Located near rivers and large lakesWhat alternative energy source does this information describe? A) Biofules. B) Solar energy. C) Wind. D) Hydroelectricity. Show Answer Correct Answer: D) Hydroelectricity. 28. Which of the following is a density independent limiting factor? A) Competition. B) Weather. C) Predation. D) Disease. Show Answer Correct Answer: B) Weather. 29. A scientific hypothesis: A) Always consists of one independent variable to be measured by a scientist. B) Is a prediction about something that has not yet been observed but that you want to test in a controlled manner. C) Includes the design of an experiment that can be used in scientific inquiry. D) Is a testable proposition that explains an observed phenomenon or answers a question. Show Answer Correct Answer: D) Is a testable proposition that explains an observed phenomenon or answers a question. 30. In an effort to improve crop production, a farmer applies excess fertilizer to one of her fields. What kind of pollution is this most likely to lead to when it rains? A) Toxic. B) Sediment. C) Nutrient. D) None of above. Show Answer Correct Answer: C) Nutrient. ← PreviousNext →Related QuizzesEnvironment QuizzesAgriculture QuizzesEnvironmental Science Quiz 1Environmental Science Quiz 2Environmental Science Quiz 3Environmental Science Quiz 4Environmental Science Quiz 5Environmental Science Quiz 6Environmental Science Quiz 7Environmental Science Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books