The Use of Plants in the Cleansing of Water Includes

question 5

Multiple Choice

The use of plants in the cleansing of water includes all of the following except

• A) Removing oil from ground water.
• B) Using wetlands to cleanse surface water before it moves into ecologically sensitive estuaries and tidal flats.
• C) Using plant-laden ponds to treat runoff from roads, parking lots and airport runways.
• D) Using gravel-filled basins and wetland plants to treat septic-tank effluent, instead of using a conventional drain field.

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