Which of the following statements indicate advantages of sub-surface irrigation? I. Low operation cost once...

WAEC 2009

Which of the following statements indicate advantages of sub-surface irrigation? I. Low operation cost once established II. Does not disturb the movement of implements III. Permits efficient use of water IV. easily floods the field

A. I,II and III only
B. II,III and IV only
C. I,II and IV only
D. I,II,III and IV

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Correct Answer: Option B

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