Irrigation Engineering
A counter berm is

A horizontal benching provided on the inside slope
A horizontal benching provided on the outside slope
A vertical benching provided on the inner edge of the bank
A vertical benching provided on the outer edge of the bank

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Irrigation Engineering
An artesian aquifer is the one where

water table serves as upper surface of zone of saturation
water is under pressure between two impervious strata
None of these
water surface under the ground is at atmospheric pressure

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