Irrigation Engineering
The measure to remove water logging of land, is

Both (a) and (b)
To reduce percolation from canals and water courses
Neither (a) nor (b)
To increase outflow from the ground water reservoir

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Irrigation Engineering
A deep well

has more discharge than a shallow well
is weaker structurally than a shallow well
both (A) and (B)
is always deeper than a shallow well

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