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.

AcademicChemistryNCERTClass 7

Correct Answer: (d) Water coming out of a laundry.

Explanation: Water discharged during daily chores-like washing clothes, flushing toilets, washing dishes, bathing etc., becomes dirty. This dirty water is called wastewater.

Water trickling from a damaged tap, water coming out of a shower and water flowing in a river are not dirty and hence it is not wastewater.

raja
Updated on 10-Oct-2022 13:22:17

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