Question

Compare the system of rainwater harvesting with the probable system in hilly mountainous area or plain or plateau region?​

Answer 1

Explanation:

Dams are built over river in hilly mountainous areas .They are more advantages because this store running river water which can be used to generate electricity. Morever ,since the water stored in Dam keeps flowing to turn the turbines .,so it does not act as a breeding ground for the mosquitoes. The stagnant water in ponds and lakes however becomes a breeding ground for mosquitoes .

Answer 2

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• In hilly regions, rainwater is often collected and channeled with the help of a stream.

• In hilly regions, the system of canal irrigation called Kulhsis used for water harvesting.

• This involves a collection of rain water in a stream, which is then diverted into man-made channels 

• The stream is diverted to different areas with the help of canals for the purpose of irrigation.

• In mountainous regions, water is commonly obtained from the rivers that flow from the glaciers.

• In the plains, water is obtained from many natural sources such as lakes and rivers.

• Groundwater is also harvested with the help of borewells for irrigation and human consumption.

• In plains, the water harvesting structures are crescent-shaped earthen embankments. These are low, straight, and concrete.