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New waste disposal facilities are easy and inexpensive to develop. |
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Composting reduces organic waste to useful materials. |
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The greenhouse effect has affected global climate for millions of years. |
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The concentration factor for gold is less than the concentration factor for copper. |
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The predominant mineral resources used by modern society are metals. |
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Affluent nations tend to be totally reliant on domestic mineral sources. |
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Air and water pollution are only of concern while a mine is operating. |
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Highly developed countries tend to use most of the global resources. |
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Natural gas and methane hydrate energy sources have the same chemical composition. |
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Most of the largest oil and gas fields are located in continental interiors, far from plate boundaries. |
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Given current trends,oil supplies are likely to be largely consumed by the end of the 21st century. |
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The best solution to concerns over acid rain is to buffer lakes with calcium carbonate. |
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Groundwater at normal shallow subsurface temperatures can be used as an energy source. |
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Wind power generation has grown rapidly in the past decade. |
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All coliform bacteria are harmless |
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Biochemical oxygen demand reflects the amount of organic mater in water bodies. |
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Waterborne disease has been completely eliminated in the U.S. |
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Because they are of smaller scale, non-point source pollution sources are more easily regulated and controlled than are point sources. |
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The Cuyahoga River in Ohio has degraded dramatically over the past 30 years |
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Groundwater pollution is better alleviated by prevention than by treatment. |
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A factory is a fugitive source of air pollution emissions. |
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The major source of anthropogenic sulfur dioxide emissions is the burning of fossil fuels. |
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Nonpoint sources of pollution are diffuse and intermittent. |
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