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Ecology And Environment Quiz 6 (20 MCQs)

Quiz Instructions

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1. What would Earth be like without the greenhouse effect?
2. Death and decomposition are part of many life cycles. What else helps return nitrogen and carbon to the ground?
3. The amount of resources that you use is called your .....
4. A relationship between two organisms in which one organism benefits and the other is harmed.
5. Lions eat gazelle. There are 1000 units of energy in the level of the pyramid with the gazelle. What is the amount of energy at the lion's level?
6. Primary succession begins where there was no ecosystem and no soil such as
7. What system classifies climates?
8. All of these fields of study contribute to environmental science except
9. Presence of abnormally high concentrations of harmful substances in the environment, often put there by people
10. Kudzu, a vine covering many acres of North Carolina, was introduced to the United States in 1876 to control erosion. Over the years, scientist found that Kudzu creates problems by rapidly growing and preventing other species from getting sunlight. Which best describes kudzu?
11. What do scientist call organisms that are not native to an ecosystem and cause harm to native organisms?
12. Two species of ground squirrels live in the same habitat and eat the same types of seeds. What is the best description of their relationship?
13. The most common kind of dispersion in nature is
14. What climate zone is a rain forest
15. ..... can be grouped in two categories, point source and nonpoint source.
16. Green plants, algae, and certain bacteria use sunlight to make food
17. Secondary succession (thnk soil) forms after a catastrophic event like a forest fire and has a ..... growth rate than primary succession because soil already exists.
18. A natural resource that can be replaced at the same rate at which it is consumed is a
19. What are limiting factors
20. The presence in or introduction into the air ofa substance, which has harmful or poisonous effects.
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