Lee-Ballard: Unit 10 - Human Impact on the Environmnt

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Renewable resource

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resource that replenishes itself quickly enough so that it will not be used faster than it can be produced

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Nonrenewable resource

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natural resource that is used more quickly than it can be formed

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Pollution

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anything that is added to the environment and has a negative affect on the environment or its organisms

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Smog

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air pollution in which gases released from burning fossil fuels form a fog when they react with sunlight

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Acid Rain

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acid rain precipitation produced when pollutants in the atmosphere cause the pH of rain to decrease

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Greenhouse Effect

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normal warming effect produced when gases, such as carbon dioxide and methane, trap heat in Earth’s atmosphere

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Greenhouse Gas

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a gas composed of molecules that absorb and radiate infrared radiation from the sun

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Point Source Pollution

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pollution that comes from a specific site

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Nonpoint Source Pollution

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pollution that comes from many sources rather than from a single specific site; an example is pollution that reaches a body of water from streets and storm sewers

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Soil Erosion

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a process in which the materials of Earth's surface are loosened, dissolved, or worn away and transported from one place to another by a natural agent, such as wind, water, ice, or gravity