Question

Which of the following is not a source of wastewater?

• A. Sewers
• B. Homes
• C. Industries
• D. Hospitals

Answer 1

The correct option is A

Sewers

The correct option is A.

Explanation of correct option:

1. The polluted form of water produced from human activities and rainwater runoff is known as wastewater.
2. Generally, the two types of wastewater are domestic sewage and industrial sewage.
3. Sewers are the channels, which mediate wastewater from its source to a point of disposal and treatment.
4. Sewers are not a source of wastewater.

Explanation of incorrect options:

Option B:

1. Domestic sewage mediates wastewater from houses and apartments and is also known as sanitary sewage.
2. Thus, homes are one of the sources of wastewater.

Option C:

1. The wastewater emerging from chemical or manufacturing procedures is known as industrial sewage.
2. Thus, industries are also a common source of wastewater.

Option D:

1. Hospitals are also one of the major sources of wastewater.
2. The wastewater from hospitals can comprise hazardous components like chemical hazardous substances, pharmaceutical residues, pathogens, and radioisotopes.

Final answer: Sewers are not a source of wastewater.