This quiz works best with JavaScript enabled. Home > Ecology Environment > Studies > Ecology And Environment – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology And Environment Quiz 30 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is an invasive species? A) A native (naturally found) species which are added to an area. B) A non-native (not naturally found) species added to an area. C) A keystone species in an environment. D) None of the above. Show Answer Correct Answer: B) A non-native (not naturally found) species added to an area. 2. How do humans get nitrogen? A) Eating plants and animals. B) Breathing it in. C) Absorbing it through our skin. D) None of these are correct. Show Answer Correct Answer: A) Eating plants and animals. 3. A large tract of land is purchased by a commercial agricultural company. The land is cleared of its native flora (plants), and a single crop is planted instead. What is the effect of this action? A) There is an increase in the variety of foods. B) The biodiversity of the area is reduced. C) Thereis a reduction in the size of the land. D) Thecost of the planted crop increases. Show Answer Correct Answer: B) The biodiversity of the area is reduced. 4. A nonliving element in an ecosystem is an A) Animal. B) Abiotic factor. C) Biotic factor. D) Organism. Show Answer Correct Answer: B) Abiotic factor. 5. Green plants are A) Producers. B) Consumers. C) Herbivores. D) Omnivores. Show Answer Correct Answer: A) Producers. 6. How do animals depend on plant for survival? A) Animals help spread seeds of plants for new growth. B) Animals are producers in a food web. C) Plants and animals need sunlight to survive. D) Animals eat plants and other animals that eat plants for food. Show Answer Correct Answer: D) Animals eat plants and other animals that eat plants for food. 7. How would beavers building a dam cause an increase in the fish population? The dam A) Blocks a river and creates a lake. B) Causespredators to hunt more fish. C) Forcesmany birds to leave the ecosystem. D) Removestrees from around the river. Show Answer Correct Answer: A) Blocks a river and creates a lake. 8. A change in a genetic characteristics of a population from one generation to another A) Natural selection. B) Evolution. C) Adaptation. D) Artificial selection. Show Answer Correct Answer: B) Evolution. 9. All the alligators in a swamp are an example of a(n) ..... A) Organism. B) Community. C) Population. D) Group. Show Answer Correct Answer: C) Population. 10. The branch of philosophy that deals with good, bad, right, and wrong is called. A) Logic. B) Ethics. C) Science. D) Culture. Show Answer Correct Answer: B) Ethics. 11. Why is it important to conserve the biodiversity of Earth? A) To decrease the amount of global predator populations. B) To increase the stability of ecosystems during environmental changes. C) To decrease the stability of major global ocean currents. D) To increase the amount of nonrenewable resources located in the lithosphere. Show Answer Correct Answer: B) To increase the stability of ecosystems during environmental changes. 12. Animal that eats only meat. A) Herbivore. B) Omnivore. C) Carnivore. D) Stegasaurusvore. Show Answer Correct Answer: C) Carnivore. 13. Which of these is an example of two organisms competing for a biotic factor? A) Two different spiders compete for mosquitos. B) Two bats want to hibernate in the same crevice in a cave. C) Two rocks are in the same stream. D) Two deer need to use the same puddle for water. Show Answer Correct Answer: A) Two different spiders compete for mosquitos. 14. Which one is NOT an example of a decomposer? A) Mushroom. B) Leaves. C) Mold. D) Worm. Show Answer Correct Answer: B) Leaves. 15. Model used to describe a series of overlapping food chains. A) Food Chain. B) Food Web. C) Energy Pyramid. D) Energy Chain. Show Answer Correct Answer: B) Food Web. 16. Organisms that cannot make their own food is a A) Producer. B) Consumer. C) Detrivore. D) Food web. Show Answer Correct Answer: B) Consumer. 17. A single individual from a population. A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: A) Organism. 18. What are 3 activities that cause the most damage to forest areas? A) People cutting firewood, mining, animals eating the plants. B) Trees being cut for timber, clearing land for farms and cities, people cutting firewood. C) Animals eating the plants, trees being cut for timber, people cutting firewood. D) Trees being cut for timber, clearing land for farms and cities, mining. Show Answer Correct Answer: D) Trees being cut for timber, clearing land for farms and cities, mining. 19. What is an Exhaustible resource? A) Which are present in unlimited quantity in nature and thoseresources which do not get exhausted or depleted by human activities. B) The circumstances, objects, or conditions by which one is b:the aggregate of social and cultural conditions that influence the life of an A Note on Our 4, 000th Podcast Heredity and environment are both important. C) These include air, clay sand, water and solar energy. D) Limited in nature and can be exhausted by different human activities. Show Answer Correct Answer: D) Limited in nature and can be exhausted by different human activities. 20. All of the following disciplines are major contributors to the field of environmental science except A) Biology and Earth Science. B) Chemistry and Physics. C) Social Science. D) Languages. Show Answer Correct Answer: D) Languages. ← PreviousNext →Related QuizzesEcology Environment 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 8Ecology And Environment Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books