Question

State the advantages of Inunduation and Perennial Canals.

Answer 1

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Advatages of Inunduation Canals :-

i) Easily and Cheaply built.

ii) They are useful in controlling Floods.

Advanatges of Perennial Canals :-

i) As these canals servw throughout the year, agricultural production in the areas of less or uncertain rainfall has increased.

ii) As these canals supply water even in hot season, cultivation of same crops can be carried round the year.

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Answer 2

Answer:

Perennial Canals: These canals flow all the year round and thus they are known as perennial canals. They draw water from perennial rivers or from artificial lakes which maintain a high level of water on the upstream side.

Inundation Canal: These canals are directly taken out of rivers without building any barrage or dams. When the rivers are in flood, excess water flows into these canals. These canals are not useful during the dry months.

Advantages of Perennial canals is that they have water in them for all the year round. On the contrary inundation canal becomes dry during summer months or they become dry when the river changes it course.