Which household practice best prevents recontamination of treated drinking water?
Correct answer: A. Store it in a covered container with a narrow opening
- A. Store it in a covered container with a narrow opening
- B. Keep it in an uncovered bucket for easy access
- C. Pour it into a wide bowl before each use
- D. Add more chlorine whenever the water looks cloudy
Explanation
A covered, narrow-opening container limits hand contact, dust and insects entering the water. An uncovered or wide container is easily contaminated, while extra chlorine should not be added simply because water appears cloudy.
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About Environmental Health and Sanitation
Environmental health examines how water, air, food, housing, waste, noise, chemicals and workplace conditions affect disease and well-being. Sanitation content includes safe water treatment and storage, sewage and solid-waste disposal, food hygiene, vector control and the distinction between personal cleanliness and broader public-health sanitation.
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