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WAEC Agricultural Science 2025 Objective — Question 18

Question 18 of 50 from the West African Examinations Council (WAEC) Agricultural Science 2025 Objective paper, with the correct answer and a full explanation.

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Which of the following statements correctly defines overhead irrigation?

  • A. It involves the use of little volume of water
  • B. It supplies water to crops on the surface of farmlandCorrect
  • C. It delivers water through underground pipes to crops
  • D. It delivers water directly to the roots of crops

Explanation

Overhead irrigation mimics natural rainfall by spraying water over crops through sprinklers positioned above the ground. It irrigates both the plant canopy and the soil surface, making it suitable for a wide range of crops and field layouts.

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