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Human Ecology Quiz 2
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| Bio-geochemical
Cycles Quiz I Ecosystem Ecology Test Energy Calculation Human Ecology Population Dynamics
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Part A: Answer 1. renewable resources a) ____ a living resource that can be produced again 2. non-renewable resources b) ____ a non-living finite resource that once exhausted cannot be made again 3. sustainable yield c) ____ a balance between the level of production and use of a resource that can be maintained indefinitely 4. succession d) ____ the changes in the vegetation in an ecosystem that occur over time as each species creates conditions unfavourable for their own seedlings 5. technological revolution e) ____ the change in a population lifestyle to processing and communication of information 6. industrial revolution f) ____ a change in a population lifestyle from agriculture to urban industrial living 7. agricultural revolution g) ____ a change in a population lifestyle from hunting and gathering to domestication of animals and cultivation of crops 8. desertification h) ____ the continued erosion of topsoil and the formation of deserts on grazing lands 9. environmental impact i) ____ the effect of a human activity on a natural environment 10. genetic library j) ____ a collection of genetic material available for selective breeding 11. accidental take k) ____ the accidental capture of an unwanted species Part B: Answers 1. greenhouse effect a) ____ an increase in the amount of heat trapped in the earth's atmosphere due to an increase in the levels of carbon dioxide in the atmosphere 2. greenhouse gas b) ____ a gas such as carbon dioxide that traps heat that would otherwise dissipate from the earth's surface 3. eutrophication c) ____ nutrient enrichment of water 4. chlorofluorocarbons (CFC's) d) ____ an organic compound that causes the breakdown of ozone 5. ultraviolet radiation e) ____ a non-visible component of sunlight that causes sunburn and induces skin cancer 6. polychlorinated biphenyls (PCB) f) ____ a group of substances that has been shown to cause damage to genetic material 7. dioxin g) ____ a highly toxic group of compounds that form as combustion by-products 8. acid precipitation h) ____ precipitation that has a pH of less than 5, usually formed as a result of industrial pollutants such as sulfur dioxide and nitrous oxides reacting with water vapour to create sulfuric acid and nitric acid 9. pesticides i) ____ a chemical that kills pests 10. herbicides j) ____ a chemical that kills unwanted plants 11. oligotrophic k) ____ a nutrient-poor body of water |