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Human Impact (eco)
try human impact questions for ecology
| Question | Answer |
|---|---|
| human population and technological advances that has lead to the disruption and destruction of ecosystems; industrialization | urbanization |
| increased due to exponential growth, better medicine, better sanitation, and education | human population |
| can compete with other organisms, carry disease, disrupt food chains, damage ecosystems | introduced species |
| the destruction or removal of an organisms | direct harvesting |
| animals feeding and the loss of groundwater and erosion | overgrazing |
| chemical that can contaminate the air and water to kill pests | pesticide |
| forest destruction; loss of trees; causes increase in carbon dioxide | deforestation |
| anything added to the environment that makes it less suitable for organisms | pollution |
| capable of being broken down by natural processes | biodegradable |
| type of water pollutant that speeds up succession | organic |
| occurs when inorganic wastes and pesticides are passed along a food chain and actually increase in concentration | biological magnification |
| heated water that decreases oxygen content of the water | thermal pollution |
| toxic to plants and animals in or near water and can cause physical damage as well | oil spill |
| coal, oil, and natural gas; nonrenewable source of energy; burning them contributes to global warming, smog, and acid rain | fossil fuels |
| lowers pH of water; caused when byproducts of the burning of fossil fuels mix with water vapor | acid rain |
| increase in carbon dioxide (and other greenhouse gases) which may heat up the earth; solar radiation can enter Earth's atmosphere, but heat radiation cannot escape | global warming |
| dirty brown haze that forms as a result of burning fossil fuels; causes respiratory problems | smog |
| protective layer of gases to prevent some UV rays from hitting earth | ozone |
| probable cause of the hole in the ozone layer; as a result, has been linked to an increase in mutations, skin cancer, and cataracts | CFCs |
| fuel from the splitting of atoms; no fossil fuels used, but may result in thermal and land pollution | nuclear fuel |
| materials in the environment used by humans | natural resource |
| natural resource that is easily replaced | renewable |
| natural resouce that depletes quickly, difficult to replace, or has a finite quantity | nonrenewable |
| the reusing of resources | recycle |
| replanting of trees | reforestation |
| use of sun's energy as a fuel | solar power |
| using wind as a source of electricity | wind power |
| using running/falling water as a source of electricity | hydroelectric power |
| using the Earth's natural heat as a source of energy | geothermal energy |
| the risks associated with correcting a problem; a solution to one problem may create another | trade off |
Created by:
aeckert
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