This quiz works best with JavaScript enabled. Home > Science > Environmental Sciences – Quiz 49 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 49 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Flowing network of surface water A) Watershed. B) Aquifer. C) Groundwater. D) River system. Show Answer Correct Answer: D) River system. 2. Which of the following statement about salt in the oceans is true? A) It is sodium chloride. B) It is less salty that salt we eat. C) It has been in the ocean for only 50 years. D) It is saltier than the salt we eat. Show Answer Correct Answer: A) It is sodium chloride. 3. What major and potentially catastrophic events can be predicted to occur in the Northern Hemisphere between the months of June and November? A) Tsunamis. B) Hurricanes. C) Asteroid impacts. D) Volcanic eruptions. Show Answer Correct Answer: B) Hurricanes. 4. What term describes the variety of ecosystems within a given region? A) Climate change. B) Ecosystem diversity. C) Biodiversity. D) Genetic engineering. Show Answer Correct Answer: C) Biodiversity. 5. The leading cause of deforestation is A) Oil. B) Cattle ranching. C) Agriculture. D) Building new homes. Show Answer Correct Answer: B) Cattle ranching. 6. An open, peaceful violation of a law to protect its alleged injustice. A) Morality disobedience. B) Constitutional violation. C) Civil disobedience. D) Ethic violation. Show Answer Correct Answer: C) Civil disobedience. 7. About ..... of Earth's tropical rain forests have been destroyed by agriculture and ..... A) Half; urban development. B) Nine-tenths; urban development. C) Three-fourths; pollution. D) One-third; pollution. Show Answer Correct Answer: A) Half; urban development. 8. What is similar about the paths that energy took through the ecosystem? A) They all have the same animals. B) All the paths have energy from the moon. C) They all begin with the sun. D) They all end with the sun. Show Answer Correct Answer: C) They all begin with the sun. 9. Which layer is liquid? A) Crust. B) Mantle. C) Outer core. D) Inner core. Show Answer Correct Answer: C) Outer core. 10. What is the measurement of the substances in water besides water molecules? A) PH. B) Chloriform count. C) Standard. D) Water quality. Show Answer Correct Answer: D) Water quality. 11. If you visited a savanna, you would likely see A) Herds of grazing rhinos, gazelles, and giraffes. B) Prairie dogs and buffalo. C) A dry sandy ecosystem. D) A coastal ecosystem. Show Answer Correct Answer: A) Herds of grazing rhinos, gazelles, and giraffes. 12. Which is true of denitrification? A) It converts ammonia to nitrates. B) It can occur due to lightning. C) It converts nitrates to nitrogen gas. D) It benefits the plant. Show Answer Correct Answer: C) It converts nitrates to nitrogen gas. 13. Phosphorous is needed in organisms for the production of A) ADP and ATP. B) Cellular membranes. C) Deoxyribonucleic and ribonucleic acids. D) All of the answers are correct. Show Answer Correct Answer: D) All of the answers are correct. 14. High biodiversity is important because ..... A) It means that the ecosystem is more able to recover from disturbances. B) It means that the ecosystem is less able to recover from disturbances. C) It means that organisms are healthier and have more opportunities. D) It means that organisms are less healthy and have less opportunities. Show Answer Correct Answer: A) It means that the ecosystem is more able to recover from disturbances. 15. The movement of the ..... causes large plates of the lithosphere to move A) Asthenosphere. B) Mantle. C) Crust. D) Core. Show Answer Correct Answer: A) Asthenosphere. 16. Why is it important that pesticides break down into harmless materials? A) So they do not affect non-target organisms. B) So they do not enter waterways in runoff and kill aquatic insects and other animals. C) So they do not bioaccumulate in birds or other animals that eat insects. D) All of these are reasons that pesticides should break down into harmless materials. Show Answer Correct Answer: D) All of these are reasons that pesticides should break down into harmless materials. 17. Industrial water use includes which of the following activities? A) Irrigation. B) Power generation. C) Drinking. D) Car washing. Show Answer Correct Answer: B) Power generation. 18. Pollution that comes from many sources rather than from a single specific site; an example is pollution that reaches a body of water from streets and storm sewers A) Nonpoint pollution. B) Thermal pollution. C) Desalinization. D) Water pollution. Show Answer Correct Answer: A) Nonpoint pollution. 19. Type of species that is not native to an area, but thrives due to a lack of limiting resources. A) Introduced species. B) Invasive species. C) Unusual species. D) None of above. Show Answer Correct Answer: B) Invasive species. 20. Which of the following is NOT a natural resource? A) Sun. B) Plants. C) Rocks. D) Clothing. Show Answer Correct Answer: D) Clothing. ← PreviousNext →Related 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 9Environmental Sciences Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books