This quiz works best with JavaScript enabled. Home > Science > Earth > Environmental Sciences – Quiz 489 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 489 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a major threat of river ecosystems? A) Flooding. B) Dams. C) Hard Rain. D) Murky Water. Show Answer Correct Answer: B) Dams. 2. Which population has the greatest potential for rapid growth? A) Populations with a large number of middle aged individuals. B) Older populations. C) Populations with large numbers of young offspring. D) None of these. Show Answer Correct Answer: C) Populations with large numbers of young offspring. 3. Is a volcano a natural event or human activity? A) Natural event. B) Human activity. Show Answer Correct Answer: A) Natural event. 4. Climate change can cause increases in asthma, allergies and heart disease. A) True. B) False. Show Answer Correct Answer: A) True. 5. A mixture of gases and particles that surround a planet, held by gravity is called the- A) Greenhouse effect. B) Atmosphere. C) Jet stream. D) Blanket. Show Answer Correct Answer: B) Atmosphere. 6. Most of the salt in the ocean is ..... A) Chlorine. B) Rock salt. C) Sodium chloride. D) Sodium hydroxide. Show Answer Correct Answer: C) Sodium chloride. 7. What are the four layers of the atmosphere? A) Hydrosphere. biosphere, geosphere, isophere. B) Troposphere, Stratosphere, Mesosphere, Thermosphere. C) Troposphere, Exosphere, Mesosphere. Thermosphere. D) Thermosphere, Hydrosphere, Mesosphere, Troposphere. Show Answer Correct Answer: B) Troposphere, Stratosphere, Mesosphere, Thermosphere. 8. Which axis would you graph the dependent variable? A) A. B) B. C) X. D) Y. Show Answer Correct Answer: D) Y. 9. An example of a dirty energy is A) Oil. B) Natural gas. C) Carbon. D) All are correct. Show Answer Correct Answer: D) All are correct. 10. This layer is above the mesosphere. In this layer of the atmosphere, there are few molecules in the air, so the air pressure is very low. As the height of the layer increases the temperature increases. This is the layer where the aurora borealis or Northern Lights occur. A) Thermosphere. B) Mesosphere. C) Atmosphere. D) Lithosphere. Show Answer Correct Answer: A) Thermosphere. 11. Judges actions in terms of their effects on whole ecological systems A) Anthropocentrism. B) Biocentrism. C) Ecocentrism. D) None of above. Show Answer Correct Answer: C) Ecocentrism. 12. What are some ways we can help in maintaining biodiversity? A) Get involved with ecological restoration in your area. B) Prevent invasive species from overpopulating. C) Don't use chemical pesticides on crops. D) All of the above. Show Answer Correct Answer: D) All of the above. 13. Sealing cracks where air can leak into the building would NOT part of correcting ..... A) Asbestosis. B) Sick-building syndrome. C) Zero emission program. D) Emphysema. Show Answer Correct Answer: B) Sick-building syndrome. 14. What percentage of energy is transferred between trophic levels? A) 90%. B) 75%. C) 50%. D) 10%. Show Answer Correct Answer: D) 10%. 15. A social movement dedicated to protecting the natural worid A) Environmental science. B) Environmentalism. C) Ecology. D) Sociology. Show Answer Correct Answer: B) Environmentalism. 16. Trees, shrubs, vines, grasses, plants, mosses, fungi, insects A) Living parts of environment. B) Non-living parts of environment. Show Answer Correct Answer: A) Living parts of environment. 17. The study of the Earth's nonliving systems and the planet as a whole A) Biology. B) Earth science. C) Social sciences. D) None of above. Show Answer Correct Answer: B) Earth science. 18. The Philippines has 142 critical watersheds A) FALSE. B) TRUE. Show Answer Correct Answer: B) TRUE. 19. All of the following are rain forest trees except A) Balsa. B) Mahogany. C) Maple. D) None of above. Show Answer Correct Answer: C) Maple. 20. A testable idea/explanation for how something in the natural world works is called a A) Scientific question. B) Conclusion. C) Hypothesis. D) Peer-reviewed journal. Show Answer Correct Answer: C) Hypothesis. ← 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