Much of the "biosolids" material that is the end product of a wastewater treatment plant is ________

A) used as crop fertilizer in the United States
B) loaded onto barges and sent to underdeveloped countries to use as fertilizer
C) trucked to special biohazard landfills for disposal
D) placed in deep injection wells to keep it out of the water table
E) used as part of the "fill" to develop wetlands into agriculture or housing areas


A

Environmental & Atmospheric Sciences

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