| 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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