NCERT Class 9 EVS Rainwater harvesting

19. Rainwater harvesting

Background

There cannot be life without water. Rain and snowfall are the two sources of fresh water which replenish underground water, lakes, rivers, and other water bodies. But a lot of rainwater also goes waste. Water being a scarce resource, and its ever increasing use with the growing population and development, it needs to be utilised judiciously. Every drop of water is precious and one of the ways to meet the growing demand for water is through rainwater harvesting. Stepwells, also called bawdi or baoli are in essence, wells in which the water can be reached by descending a set of steps.

Methodology

1. Find out different methods of rainwater harvesting in different parts of the country from different sources like magazines, newspapers, internet, etc.

2. Find out the current methods practised in your state.

3. Compare two households/localities – one practising rainwater harvesting and the other not, in terms of water availability for domestic purposes.

Conclusion

Write a report based on the information that you have collected.

Follow-up

1. Based on your comparative study of different rainwater harvesting methods, recommend the most suitable method for your area.

2. Advocate the practice of rainwater harvesting in your school/home/ locality.

Please refer to attached file for NCERT Class 9 EVS Rainwater harvesting