Irrigation Engineering
Pick up the correct statement from the following mention

All of these
Capillary moisture held in the soil pores against gravity by surface tension, is utilised by plants
Gravity water is harmful to crops
Hygroscopic water remains attached to soil molecules by chemical bond

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Irrigation Engineering
If A is the area of the surface, x̅ is the depth of its C.G. from the surface of the water and ω is the density of water, then

Depth of the centre of pressure is 2/3H vertically below the surface
All listed here
Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅
Total pressure on the surface is equal to ωx̅

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