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give an example of a renewable resource |
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replenished over short time span |
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give an example of a nonrenewable resource |
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what are the stage of development of coal |
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peat,lignite,bituminous,anthrocite |
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placer deposits form when |
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eroded minerals settle quickly from moving h2o while less dense particles remain suspended and continue to move |
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what is a nonmetallic mineral resource |
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give an advantage of solar energy |
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hydroelectric power is produced by |
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falling h2o drives turbines that produce electricity |
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what is the source of geothermal energy |
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harnessed by tapping natural underground reservoirs of stream and hot h2o |
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how is tidal power harnessed |
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constructing a dam across mouth of a bay or a stream in coastal areas with large tidal ranges |
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fresh water is used for which of the following |
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drinking, bathing, washing clothes |
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what is an example of a non-point source of fresh water pollution |
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according to figure 4-2 what is the single largest source of air pollutants |
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one way that mining for mineral resources damages the land is by |
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in which decade were the first important laws passed to decrease water pollution |
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reduce point source pollution into surface h2o |
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what is the most important law passed to deal with air pollution |
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the fuel for nuclear fission in nuclear reactors is |
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wind power generates what type of pollution |
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