
1. What is rain water harvesting?
2. Mention Two objectives of rain water harvesting?
Answer
492.3k+ views
Hint: The rainwater harvesting system is one of the best methods to support the conservation of water. In this question you have to write why it is done. Generate alternative solutions then evaluate and select an alternative after this implementation and follow upon the solution.
Complete Answer:
The simple process or technology used to conserve Rainwater by collecting, storing, conveying and purifying of Rainwater that runs off from rooftops, parks, roads, open grounds, etc. for later use is called Rain Water Harvesting.
The main objectives of rainwater harvesting are as follows:
Reducing the loss of water by its running –off.
Avoiding flooding of roads. Meeting the demands of increasing water.
Note:
There are many advantages of RainWater Harvesting like:
1. It helps to reduce the water bills.
2. It helps to reduce the soil erosion, stormwater runoff, flooding, and pollution of surface water with fertilizers, pesticides and other sediments.
3. It is an excellent source of water for the purpose of landscape irrigation with no chemicals and dissolved salts and free from all minerals.
4. It is the simplest method to conserve water.
5. It is used to increase the availability of water during the dry season.
6. It helps to reduce groundwater contamination.
7. It is used to avoid the flooding of roads
Dew and fog can also be collected with nets.There are three main types of rainwater harvesting system:
1. Direct pumped,
2. Indirect pumped, and
3. Indirect gravity.
However rain water is not used for drinking as it may not be good for health.
Complete Answer:
The simple process or technology used to conserve Rainwater by collecting, storing, conveying and purifying of Rainwater that runs off from rooftops, parks, roads, open grounds, etc. for later use is called Rain Water Harvesting.
The main objectives of rainwater harvesting are as follows:
Reducing the loss of water by its running –off.
Avoiding flooding of roads. Meeting the demands of increasing water.
Note:
There are many advantages of RainWater Harvesting like:
1. It helps to reduce the water bills.
2. It helps to reduce the soil erosion, stormwater runoff, flooding, and pollution of surface water with fertilizers, pesticides and other sediments.
3. It is an excellent source of water for the purpose of landscape irrigation with no chemicals and dissolved salts and free from all minerals.
4. It is the simplest method to conserve water.
5. It is used to increase the availability of water during the dry season.
6. It helps to reduce groundwater contamination.
7. It is used to avoid the flooding of roads
Dew and fog can also be collected with nets.There are three main types of rainwater harvesting system:
1. Direct pumped,
2. Indirect pumped, and
3. Indirect gravity.
However rain water is not used for drinking as it may not be good for health.
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