Irrigation Engineering
A water-logged land is found suitable for cultivation due to

Regular supply of water to plants from the water table by capillary action
None of these
Ease of tillage for preparation of the field for optimum condition of germination
Absence of aeration of soil from root zone of the plant

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Irrigation Engineering
Which one of the following statements is correct?

The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream
The canal system and the drainage system are complementary
The canal system runs on ridges, gets divided into smaller channels and spreads its water on the land
All listed here

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