This quiz works best with JavaScript enabled. Home > Agriculture > Ecology Environment > Studies > Ecology And Environment – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology And Environment Quiz 16 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following cycles needs different types of bacteria to make the most common gas in the atmosphere useful to plants? A) The water cycle. B) The nitrogen cycle. C) The carbon cycle. D) The hydrogen cycle. Show Answer Correct Answer: B) The nitrogen cycle. 2. Why is it important to use forest areas sustainably? A) So animals have food. B) Because animals use forests for food, shelter and life. C) So people can see and appreciate forests in the future. D) All of the above. Show Answer Correct Answer: D) All of the above. 3. A group of organisms that can mate to produce fertile offspring. A) Organism. B) Community. C) Species. D) Population. Show Answer Correct Answer: C) Species. 4. Which sector uses the most water? A) Agriculture. B) Industry. C) Household. D) None of above. Show Answer Correct Answer: A) Agriculture. 5. Overpopulation occurs when a population exceeds its carrying capacity. White-tailed deer are considered to be an overpopulated species in the central United States. What is one consequence of white-tailed deer exceeding their carrying capacity? A) People don't see deer as often in urban areas. B) The deer are less healthy and more prone to disease. C) There are more predators to eat the deer. D) The deer have stopped breeding. Show Answer Correct Answer: B) The deer are less healthy and more prone to disease. 6. Over the past 200 years, the level of carbon dioxide in the atmosphere has A) Shown no change. B) Increased steadily. C) Increased, but recently decreased. D) Decreased steadily. Show Answer Correct Answer: B) Increased steadily. 7. Example of a decomposer A) Plants. B) Fungus. C) Frogs. D) Mouse. Show Answer Correct Answer: B) Fungus. 8. I think renewable energy is the answer to many environmental problems. Student B: ..... A) That's very kind of you. B) I couldn't agree more. C) It's up to you. D) That would be interesting. Show Answer Correct Answer: B) I couldn't agree more. 9. In the relationship between a lion and a zebra, the lion is considered what? A) Predator. B) Prey. C) Herbivore. D) Autotroph. Show Answer Correct Answer: A) Predator. 10. Which is NOT shown on a population pyramid? A) Age. B) Sex (male/female). C) Ethnicity. D) None of above. Show Answer Correct Answer: C) Ethnicity. 11. Water lilies do not grow in desert sand because water availability to these plants in a desert is A) The logistic growth curve. B) A competition factor. C) A limiting factor. D) The carrying capacity. Show Answer Correct Answer: C) A limiting factor. 12. Raccoons eat aquatic animals. If chemicals entered the lake with rain water and destroyed the plants, how would this impact the raccoon population? A) Raccoonswould have more aquatic animals to eat. B) Raccoonswould begin eating land plants. C) Raccoonswould have less aquatic animals to eat. D) Raccoons would only drink water. Show Answer Correct Answer: C) Raccoonswould have less aquatic animals to eat. 13. Choose the complete and logical food chain. A) Eagle-squirrel-rabbit-plant-eagle. B) Deer-squirrel-plant-sun. C) Sun-deer-plant-eagle. D) Sun-plant-rabbit-eagle. Show Answer Correct Answer: D) Sun-plant-rabbit-eagle. 14. If an animal is nearly extinct, it is ..... A) In danger. B) Endangered. C) Exotic. D) Extinct. Show Answer Correct Answer: B) Endangered. 15. Silverfish live and hunt with army ants. They share the prey. They neither help nor harm the ants. A) Mutualism. B) Parasitism. C) Commensalism. D) None of above. Show Answer Correct Answer: C) Commensalism. 16. The process by which the scientific community examines a paper before its publication is called A) Fact checking. B) Peer review. C) Partner share. D) Good reporting. Show Answer Correct Answer: B) Peer review. 17. The process of recovering valuable or useful materials from waste is called A) Recycling. B) Rebuilding. C) Reducing. D) Renewing. Show Answer Correct Answer: A) Recycling. 18. A tree is a ..... A) Composer. B) Decomposer. C) Producer. D) None of above. Show Answer Correct Answer: C) Producer. 19. An organism that produces its own food supply from inorganic compounds is called a(an) A) Heterotroph. B) Detritivore. C) Consumer. D) Autotroph. Show Answer Correct Answer: D) Autotroph. 20. An organism that eats the primary consumer. A) Primary Consumer. B) Tertiary Consumer. C) Secondary Consumer. D) Producer. Show Answer Correct Answer: C) Secondary Consumer. 21. Which soil horizon contains the most humus? A) Parent material. B) Bedrock. C) Topsoil. D) Subsoil. Show Answer Correct Answer: C) Topsoil. 22. Which of these are important sources of drinking water in the US? A) Rivers. B) Lakes. C) Reservoirs. D) All options are correct. Show Answer Correct Answer: D) All options are correct. 23. Which level of organization is the most complex? A) Population. B) Ecosystem. C) Organism. D) Community. Show Answer Correct Answer: B) Ecosystem. 24. Chain showing how energy passes from one organism to the next A) Herbivore. B) Food web. C) Food chain. D) Abiotic. Show Answer Correct Answer: C) Food chain. 25. As you move upward, from level to level, in an energy pyramid, energy ..... A) Increases. B) Decreases. C) Stays the same. D) Increases exponentially. Show Answer Correct Answer: B) Decreases. 26. What is the term for each step in the transfer of energy and matter within a biological community? A) Trophic level. B) Energy path. C) Food pyramid. D) Food web. Show Answer Correct Answer: A) Trophic level. 27. Where would you most likely find nitrogen-fixing bacteria? A) In the leaves of trees. B) On the roots of legumes. C) On dust particles in the atmosphere. D) In blue-green algae. Show Answer Correct Answer: B) On the roots of legumes. 28. A carbon "sink" is best described as: A) A carbon reservoir that is releasing more carbon than it is taking in. B) Something that causes carbon to leak out to the atmosphere. C) A carbon reservoir that stores more carbon that it is releasing. D) A reservoir that readily releases carbon to another reservoir. Show Answer Correct Answer: C) A carbon reservoir that stores more carbon that it is releasing. 29. The place in which an organism lives. A) Population. B) Habitat. C) Community. D) Competition. Show Answer Correct Answer: B) Habitat. 30. Causing a very large amount of damage A) Dangerous. B) Destructive. C) Impactful. D) Tsunami. Show Answer Correct Answer: B) Destructive. ← PreviousNext →Related QuizzesEcology Environment QuizzesAgriculture QuizzesEcology And Environment Quiz 1Ecology And Environment Quiz 2Ecology And Environment Quiz 3Ecology And Environment Quiz 4Ecology And Environment Quiz 5Ecology And Environment Quiz 6Ecology And Environment Quiz 7Ecology And Environment Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books