Under which group, does waviness in surface falls?
APrimary texture
BSecondary texture
CTertiary texture
DQuaternary texture
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When a small irrigation canal has to cross over a median drain we construct:
The margin between crest of a dam or canal bank and full supply level is:
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Which of the following is not an irrigation?
Shallow horizontal tunnels constructed along the river on its bank to intercept ground water called: