Question

Role of rainwater harvesting in promoting sustainable development (150 -200) please its urgent

Answer 1

Explanation:

India is densely populated. (Identify the subject and the predicate.)

2. Do take medicine. ( Identify the kind of sentence)

3. History is her favourite subject. (Change interrogative sentence by

Answer 2

Answer:

Rainwater harvesting is the practice of collecting rainwater or stormwater, and storing it for subsequent use either indoors or outdoors. The most common form consists of harvesting rainwater from roofs or paved surfaces, but it can also be collected through specially prepared porous ground surfaces or via subsoil drainage from turf areas. Rainwater can be used in just about any application if it is filtered and treated appropriately. Common uses include landscape irrigation, pool filling, car washing, clothes washing, toilet flushing, showering and bathing, industrial cooling, and where regulations and tests allow it – drinking water.

Humans have harvested rainwater since times immemorial. The ancient Romans built houses with rooftops specifically designed to catch rain and store it for general household use. The advent of central pressurised water supply systems largely did away with the need for rainwater harvesting in urban areas as people became accustomed to water on tap as the norm. There has been a revival of urban rain harvesting in the past few decades as population pressures and increased cycles of drought and flood have put increasing strain on our water resources. The high cost of centrally supplied water, in both economic and environmental terms, has also driven people to consider more cost-effective and sustainable methods of water supply.