Question

why there is need of rainwater harvesting

Answer 1

Harvesting allows the collection of large amounts of water. Most rooftops provide the necessary platform for collecting water. Rainwater is usually free from harmful chemicals, which makes it ideal for irrigation purposes. Another important advantage is that it reduces demand for potable water.

Answer 2

rainwater harvesting is the method To save the rain Water and use it.... by doing this we can use this Water in The condition of water sacricity