This quiz works best with JavaScript enabled. Home > Science > Earth > Environmental Sciences – Quiz 129 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 129 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Approximately what percentage of Earth's water is SALT water? A) 97 %. B) 71%. C) 30%. D) 3%. Show Answer Correct Answer: A) 97 %. 2. As soil matures, it becomes A) Deeper. B) Sandier. C) Thinner. D) It doesn't change. Show Answer Correct Answer: A) Deeper. 3. Can urbanization be a good thing? A) Yes. B) No. Show Answer Correct Answer: A) Yes. 4. What is happening on this picture with the light? A) Light is being reflected. B) Light is being released. C) Light is being absorbed. D) Light is being transmitted. Show Answer Correct Answer: C) Light is being absorbed. 5. The impact made by various changes in the earth's atmosphere including cloud cover, precipitation, temperature change and tdes is A) Weather. B) Wind. C) Exosphere. D) Thermospere. Show Answer Correct Answer: A) Weather. 6. True or false:line graphs are the most common in science. A) True. B) False-bar graphs are the most common in science. C) False-circle graphs are the most common in science. D) None of above. Show Answer Correct Answer: A) True. 7. Plants play a crucial role in the carbon cycle because they A) Allow carbon to enter an ecosystem through photosynthesis. B) Are chemically converted into fossil fuels when burned. C) Have special bacteria that live in their root systems. D) Do not release carbon dioxide during cellular respiration. Show Answer Correct Answer: A) Allow carbon to enter an ecosystem through photosynthesis. 8. Where does the energy of most ecosystems come from? A) Wind. B) Air. C) Sun. D) Geothermal pockets. Show Answer Correct Answer: C) Sun. 9. The variable that the scientist manipulates A) Independent. B) Dependent. Show Answer Correct Answer: A) Independent. 10. The main human activity that adds to an individual's carbon footprint. A) Usage of alternative energies (wind, solar, etc). B) Respiration and growth. C) Photosynthesis by plants. D) Usage of fossil fuels for energy. Show Answer Correct Answer: D) Usage of fossil fuels for energy. 11. As altitude or latitude increase, temperature..... A) Stays the same. B) Rises. C) Drops. D) Drops, then rises. Show Answer Correct Answer: C) Drops. 12. Which is NOT a step in the scientific method? A) Make observation. B) Form a theory. C) Collect data. D) Form a hypothesis. Show Answer Correct Answer: B) Form a theory. 13. The interface between the land and a river or a stream is ....., also known as a buffer zone. A) Drainage Divide. B) Estuary. C) Riparian Zone. D) Watershed. Show Answer Correct Answer: C) Riparian Zone. 14. You should summarize your results in a few sentences? A) True. B) False. Show Answer Correct Answer: A) True. 15. Which answer best describes a producer in an ecosystem? A) A living organism. B) A living organism that produces its own food. C) A living organism that produces its own food and is food for other living organisms. D) A living organism that produces and consumes other living organisms. Show Answer Correct Answer: C) A living organism that produces its own food and is food for other living organisms. 16. What are the two main parts of an ecosystem? A) Animals and plants. B) Biotic & abiotic features. C) Habitats and niches. D) Producers and consumers. Show Answer Correct Answer: B) Biotic & abiotic features. 17. Which is a biotic factor that affects the size of a population in the specific ecosystem? A) The average temperature of the ecosystem. B) The number and kinds of soil minerals in the ecosystem. C) The number and kinds of predators in the ecosystem. D) The concentration of oxygen in the ecosystem. Show Answer Correct Answer: C) The number and kinds of predators in the ecosystem. 18. A way the factory could help conserve the river water as a natural resource is to ..... A) Filter the water before dumping into the river. B) Remove all of the animals from the area for their protection. C) Set up nets down river to remove contaminated fish. D) Post signs of "No swimming in the river". Show Answer Correct Answer: A) Filter the water before dumping into the river. 19. Which statement describes the general movement of air masses? A) They move from areas of high pressure to areas of low pressure. B) They move from areas of high altitude to areas of low altitude. C) They move from areas of low humidity to areas of high humidity. D) They move from areas of low temperature to areas of high temperature. Show Answer Correct Answer: A) They move from areas of high pressure to areas of low pressure. 20. What is the BEST description of this picture that represents what we learned in class A) Super heros. B) Decomposing lichen. C) Making firewood. D) Cool coaches. Show Answer Correct Answer: B) Decomposing lichen. ← 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