Suggest a few useful ways of utilizing waste water.

(N/A) Waste water can be utilized in the following ways:
$(a)$ Recharging the groundwater table to prevent depletion.
$(b)$ Using treated waste water for irrigation in agriculture.
$(c)$ Using treated municipal waste water for non-potable purposes such as washing cars,cleaning roads,and watering gardens.
$(d)$ Utilizing organic pollutants present in sewage water as fertilizers for specific crops after proper treatment.