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Chapter 6: Development of Water Sources

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Questions and Answers

What is one benefit of rainwater harvesting mentioned in the text?

Increases the risk of flooding

Reduces soil erosion (correct)

Requires high maintenance

Contributes to air pollution

Why is it recommended to bypass the first 5 to 10 minutes of rainwater and filter the collected water?

To increase the chlorine content

To prevent overflow of the storage area

To reduce the acidity of the rainwater

To remove contaminants washed from the catchment area (correct)

What should be done to protect a spring from surface-water pollution?

Use limestone to purify the spring water

Construct a deep diverting ditch around the spring (correct)

Allow upstream settlements near the spring

Provide inspection manholes for access to the spring

Why is it necessary to find the source and properly develop a spring?

To eliminate surface water intrusion Signup and view all the answers

What should be done if the spring flows through fissured rock channels like limestone?

Provide monthly bacteriological examinations Signup and view all the answers

What is rainwater harvesting?

The process of collecting and storing rainwater in a scientific and controlled manner for future use Signup and view all the answers

In which areas can rainwater be an important source of water supply?

Areas with well-distributed rainfall and scarce surface and groundwater Signup and view all the answers

What is a cistern?

A water-tight tank used for storing rainwater Signup and view all the answers

Why are fibro-cement roofs excluded for rainwater collection?

They are a potential health hazard Signup and view all the answers

What does the term 'catchment area' refer to in the context of rainwater collection?

The area covered by a roof or other surface from which rainwater is collected Signup and view all the answers