Water Supply and Purification: Sources and Contamination

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What is one of the methods used for water purification according to the passage?

Exposing water to sunlight

Boiling and Distilling Water (correct)

Stirring the water vigorously

Adding soft drinks to water

Which of the following is NOT listed as a benefit of purification in the passage?

Removal of suspended matter

Addition of harmful salts (correct)

Improvement of taste and smell

Elimination of disease germs

What is the purpose of using chlorine gas or bleaching powder in water purification?

To sterilize the water (correct)

To improve the taste and smell of water

To remove suspended matter from water

To add nutrients to the water

Why is the use of a fence all around necessary according to the passage?

To prevent unauthorized access to the water source Signup and view all the answers

What are the three main sources of water supply mentioned in the text?

Rain Water, Surface Water, and Underground Water Signup and view all the answers

Why is rainwater considered unfit for drinking according to the text?

Due to suspended impurities from the atmosphere Signup and view all the answers

How can lakes and ponds be maintained as good water sources, according to the text?

Prohibiting washing of clothes near the water bodies Signup and view all the answers

What are the recommended measures to protect wells as a source of water supply?

Allowing soakage pits and latrines within 100 ft of a well Signup and view all the answers

What is suggested construction around a well to prevent waste water from entering it?

Stones or bricks set on concrete or cement lining with a parapet Signup and view all the answers

In what ways can a well be equipped if facilities are available?

Having a pump or alternatively a bucket and a chain Signup and view all the answers

Water Supply and Purification: Sources and Contamination

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Questions and Answers

What is one of the methods used for water purification according to the passage?

Which of the following is NOT listed as a benefit of purification in the passage?

What is the purpose of using chlorine gas or bleaching powder in water purification?

Why is the use of a fence all around necessary according to the passage?

What are the three main sources of water supply mentioned in the text?

Why is rainwater considered unfit for drinking according to the text?

How can lakes and ponds be maintained as good water sources, according to the text?

What are the recommended measures to protect wells as a source of water supply?

What is suggested construction around a well to prevent waste water from entering it?

In what ways can a well be equipped if facilities are available?

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