Question

Write one word for the following:-
1. The underground network of small and big pipes for carrying sewage/wastewater
2. The set up for the removal of physical, chemical and biological pollutants from waste water
3. The diseases caused by the polluted/contaminated ground water.
4. What is the function of screens in a water treatment plants?
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Answer 1

1. drainage
2. physical: settling and filtration , chemical: absorption and precipitation
3. cholera
4. used to retain solid found in watewater

Answer 2

Answer:

1. sewerage

2. wastewater treatment plant

3. water_ borne disease

I know only this Much

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