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प्रश्न
What is rain water harvesting? List out the advantages of rain water harvesting.
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उत्तर
‘Rainwater harvesting’ is the process of collecting and storing rainwater for future use. Rainwater can be collected in natural reservoirs or artificial tanks. Roof top harvesting is also a type of rainwater harvesting. The rainwater on the top of the building is collected and passed into the ground through pipes.
Water passing through the pipes enters the pit which consists of gravels and Coarse sand. As it passes impurities are filtered and stored as ground water.
Advantages of rain water harvesting:
- It increases the ground water level
- It can be used for agriculture
- It increases the availability of water for living things.
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संबंधित प्रश्न
What are the different states in which water is found during the water cycle?
Why is ocean water not suitable for domestic use?
At temperature below _______ water freezes to form ice.
Water becoming water vapour on heating is called evaporation.
What are the uses of recycled water?
State for the following whether it is due to evaporation or condensation:
Water drops appear on the outer surface of a glass containing cold water.
Maximum surface water is stored in lakes.
Place the following statements in a proper order to form a meaningful paragraph.
- Which in turn decreases the seepage of rain water into the ground.
- This decreases the open areas like parks and playgrounds.
- Increasing population create demand for construction of houses, shops, offices, roads and pavements.
- This results in depletion of water table and creates scarcity of more water.
Explain the process of rooftop rain water harvesting with the help of a suitable diagram.
Name three Biogeochemical cycles.
