Exam 11: Water, Water Everywhere but Not a Drop to Drink

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What substances are used to disinfect water?

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Potable is another term for polluted water.

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Nitrate ions in waste water can be removed by

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Oxygen

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Which process is not used by nature to purify natural water?

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Consider the following image showing water resources. Consider the following image showing water resources.   Complete the following questions using the appropriate letter from the image. More than one letter may be correct and some letters may not be used. You need only enter one letter for each question. -The region that provides a source of water to both surface and ground water resources is indicated by letter _____. Complete the following questions using the appropriate letter from the image. More than one letter may be correct and some letters may not be used. You need only enter one letter for each question. -The region that provides a source of water to both surface and ground water resources is indicated by letter _____.

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Two acids found in acid rain are

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Hard water can be caused by the presence of

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Precipitation with a pH of 8.0 would classify as acid rain.

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Primary wastewater treatment copies two of nature's purification methods. Which two are these?

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