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Question
Mention two advantages that surface wells have over inundation canals.
Solution
Wells are an independent source of irrigation. It may be used as and when the necessity arises.
(i) Wells are simplest and cheapest source of irrigation, can be dug at any convenient place.
(ii) Inundation canals are ‘flood-water’ canals and have water in them only when the river is flooded during the rainy season.
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RELATED QUESTIONS
Differentiate between Surface water and Groundwater.
Multiple choice questions
Based on the information given below classify each of the situations as ‘suffering from water scarcity’ or ‘not suffering from water scarcity’.
(a) Region with high annual rainfall.
(b) Region having high annual rainfall and large population.
(c) Region having high annual rainfall but water is highly polluted.
(d) Region having low rainfall and low population.
Answer the following questions in about 30 words.
What is water scarcity and what are its main causes?
Surface water.
What are the several methods applied for lifting water from wells?
Give Two advantages of tube-wells as a method of irrigation
Give what are the conditions necessary for tube-wells.
What are the demerits of canals? How to overcome these defects?
Give reasons for the popularity of tanks in South India.
Or
Peninsular India is an ideal region for constructing tanks. Why?
Which of the following is a ground water source?
