Irrigation Engineering
A divide wall is provided

Parallel to the axis of weir and downstream of it
At right angle to the axis of weir
At an inclination to the axis of weir
Parallel to the axis of weir and upstream of it

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

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

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