Question 1
Which of the following is wastewater?
(a) Water trickling from a damaged tap
(b) Water coming out of a shower
(c) Water flowing in a river
(d) Water coming out of a laundry
The answer is option (d).
Water coming out of a laundry is wastewater. Wastewater is generated in homes, industries, agricultural fields and in other human activities. Wastewater is rich in lather, mixed with oil, black–brown water that goes down the drains from sinks, showers, toilets, laundries and is dirty. It contains a lot of impurities and is unfit for human consumption.