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Give an example of a renewable resource.... |
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Renewable resources are.... |
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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,anthracite |
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Placer deposits form when.... |
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Definition
eroded minerals settle quickly from moving H2o while less dense particles remain. |
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What is a nonmetallic mineral resource? |
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Give an advantages of solar energy.... |
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Hydroelectric power is produced by.... |
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