SUBJECT - [CIVICS ]
A. Fill in the blanks.
1. Discharge of __________
substances into water bodies leads to water pollution.
2. Jaundice, typhoid and cholera are___________
borne diseases.
3. Pipes that carry the waste water are called_______
4. Sewer main is covered by a lid called__________
cover.
5. Grit removal is done after__________
6. In secondary treatment biogas is produced into______
tanks.
Answers
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Answer:
1 is waste
2 is
3 is sewage
4 is
5 is blockage
6 is mud pits
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