Question

Domestic and municipal waste water can be used for ......................

Answer 1

Domestic and municipal waste water after treatment can be used for irrigation purposes i.e. supplying water to the soil for growth of plants. The waste water after suitable physical and chemical treatments for removing harmful and toxic materials, is converted into effluent and discharged into water bodies. Mostly the effluent is used in irrigation because it contains nutrients that are beneficial for growth of crops.

So, the correct answer is 'irrigation'.