Advertisements
Advertisements
प्रश्न
How does rainwater harvesting structures recharge ground water?
उत्तर
Rainwater harvesting is a technique of collecting and storing rainwater for future use. The main purpose of rainwater harvesting is to make the rainwater percolate under the ground, so as to recharge ‘groundwater level’.
Methods of rainwater harvesting
- Rooftop rainwater harvesting: The rainwater that falls on the roof of the houses, apartments and commercial buildings, etc, is collected and stored in the surface tank and is used for domestic purpose.
- Recharge pit: The collected rainwater is directed into the percolation pits through pipes for Alteration. After Alteration, the rainwater enters the recharge pits or ground wells.
- Digging of tanks or lakes (Eris): Eris is constructed in such a way that, if the water in one eri overflows, it automatically gets diverted to the eri of the next village, as these eris are interconnected.
- Ooranis: These are small ponds to collect rainwater. They are used for various domestic purposes.
APPEARS IN
संबंधित प्रश्न
When there is no pond or lake in an area, will there be formation of clouds possible in that area?
List some of the ways in which you could save water in your home and school.
What are the steps will you adopt for better waste management?
What is the importance of rainwater harvesting?
Assertion: Rainwater harvesting is to collect and store rain water.
Reason: Rainwater can be directed to recharge the underground water source.
Adopting ______ irrigation and ______ irrigation in agriculture.
Direct collection and use of rain water is called rain water harvesting.
Estuaries are harmful to unique plants and animal species.
Analogy:
Water bodies meet the sea: Estuaries:: Wet lands: ______.
List the wetlands in Tamilnadu.
