Respuesta :
The statement which best explains why adequate wastewater treatment is necessary for urban areas is; "Wastewater cannot be purified by nature.".
Urban areas refer to those areas that have a dense population of people and also have quite a number of industries that generate several tons of waste. Disposal of these wastes is often an important environmental concern.
Many of the wastewater produced in urban areas contain chemical substances such as cleaning agents, persistent organic pollutants, heavy metals etc. Nature can not remove these waste materials. They can only be removed by appropriate wastewater treatment.
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Answer:
So not going to say anything but i am. DId that even have the answer?
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