This quiz works best with JavaScript enabled. Home > Science > Earth > Environmental Sciences – Quiz 576 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 576 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. C-14 has a half life of 5, 730 years. If a sample of fossilized wood is tested for the ratio of C-14 to N-14 and found to contain 25% C-14 and 75% N-14. How old is the sample? Hint:How many times do you need to cut something in half to have 25%? A) 5, 730 years. B) 11, 460 years. C) 15, 000 years. D) 17, 190 years. Show Answer Correct Answer: B) 11, 460 years. 2. How much of the earth's water is considered FRESH water? A) 90%. B) 97%. C) 3%. D) 30%. Show Answer Correct Answer: C) 3%. 3. What is a gradual process of change and replacement of the types of species in a community called? A) Pioneer Species. B) Climax community. C) Old-field succession. D) Ecological succession. Show Answer Correct Answer: D) Ecological succession. 4. The Canada-US Air Quality Agreement was designed to ..... A) Reduce pollution from motor vehicles. B) Increase the use of renewable energy. C) Increase cooperation on the oil pipeline. D) Reduce emissions across boarders. Show Answer Correct Answer: D) Reduce emissions across boarders. 5. What is the advantage of hydroponics systems? A) Capture sunlight and convert it into electricity. B) Generate wind energy. C) Reduce emissions from internal combustion engines. D) Conserve water and provide a controlled environment for cultivation. Show Answer Correct Answer: D) Conserve water and provide a controlled environment for cultivation. 6. What is an example of a feedback mechanism that affects fish populations in their natural ecosystem? A) When cod populations are large, cod control herring numbers by positive feedback. B) When cod populations are small, herring control cod numbers by negative feedback. C) When cod populations are small, herring control cod numbers by positive feedback. D) When cod populations are small, herring control cod numbers by utilizing predation. Show Answer Correct Answer: B) When cod populations are small, herring control cod numbers by negative feedback. 7. The tragedy of the commons occurs when individuals pursuing their own self-interest A) Deplete a resource so there is nothing left for themselves or the rest of society. B) Conserve a resource so there is plenty left for themselves and society. C) Share a resource so there is plenty left for themselves and their community. D) Go to war over a resource to secure it for future generations. Show Answer Correct Answer: A) Deplete a resource so there is nothing left for themselves or the rest of society. 8. The mass of the chocolate cake is 250 g. A) Qualitative. B) Quantitative. Show Answer Correct Answer: B) Quantitative. 9. Nonliving factors that affect living organisms in an ecosystem A) Bacteria. B) Biotic Factors. C) Abiotic Factors. D) Plankton. Show Answer Correct Answer: C) Abiotic Factors. 10. Ocean acidification occurs when A) Sea temperatures rise. B) Pollution of ocean water. C) Pollution of the atmosphere. D) None of above. Show Answer Correct Answer: B) Pollution of ocean water. 11. What is the difference between standing water and flowing water? A) Standing water is still or with little movement, flowing water is in constant motion. B) Standing water tends to have more plant life and bacteria than flowing water. C) Standing water is caused by dams, flowing water is caused by animals, like fish, swimming. D) Standing water is on the ground, flowing water is from waterfalls. Show Answer Correct Answer: A) Standing water is still or with little movement, flowing water is in constant motion. 12. Which answer choice addresses the issue of stratospheric ozone depletion? A) Montreal Protocol. B) Kyoto Protocol. C) Endangered Species Act. D) National Environment Policy Act. Show Answer Correct Answer: A) Montreal Protocol. 13. All of the following are evidence of evolution, except A) The fossil record. B) Chemical similarities of related forms. C) The structural similarities of related forms. D) Ancient Scriptures. Show Answer Correct Answer: D) Ancient Scriptures. 14. The theme for world environmental day 2021 is- A) Air pollution. B) Ecosystem restoration. Show Answer Correct Answer: B) Ecosystem restoration. 15. All of the organisms of one species living in the same area. A) Individual. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: B) Population. 16. A type of research that aims to explain and describe is a ..... research. A) Quantitative. B) Qualitative. C) Mixed methods. D) None of the above. Show Answer Correct Answer: B) Qualitative. 17. Which of the following is NOT a common element to all living things? A) Phosphorus. B) Zinc. C) Hydrogen. D) Nitrogen. Show Answer Correct Answer: B) Zinc. 18. Why is nuclear energy not as prevalent in the world today? A) People fear it. B) It produces greenhouse gases. C) There aren't any safe nuclear reactors. D) There isn't anywhere to put the large powerplants. Show Answer Correct Answer: A) People fear it. 19. True or False:Minerals can be man-made. A) True. B) False. Show Answer Correct Answer: B) False. 20. Experiments include many trials, since: A) It's fun. B) Scientists like to stay busy. C) More trials ensure the hypothesis is ALWAYS correct. D) More trials increase accuracy of results. Show Answer Correct Answer: D) More trials increase accuracy of results. ← 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