Question

What are the main objectives of rainwater harvesting?

Answer 1

Hint:Objective is something that you are trying to achieve. Objective is an aim. Example- Our objective is to finish by the end of the year. It is an object or goal of one’s efforts or actions. It is not influenced by personal feelings, interpretations, based on facts, unbiased.

Complete answer:
The main objectives of rainwater harvesting are-
1. To meet the increasing demand of water.
2. To reduce groundwater pollution.
3. To avoid the flooding of roads.
4. To reduce soil erosion.
5. Supplement domestic water needs.
6. To raise the underground water table.
7. To reduce the run-off which chokes the drain.
8. To collect rainwater and use it for domestic purposes during summer.

Note:Rainwater harvesting, also called rainwater collecting system or rainwater catchment system, technology that collects and stores rainwater for human use. It is a process of collection and storage of rain through pumps, tanks, and purification systems, rather than allowing it to run off.

Some disadvantages of rainwater harvesting are-
-Rainfall is hard to predict.
-Regular maintenance
-Requires some technical skills for installation.
-All places do not receive the same amount of rainfall.
-Initial high cost.