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WAEC Agricultural Science 2022 Objective — Question 7

Question 7 of 50 from the West African Examinations Council (WAEC) Agricultural Science 2022 Objective paper, with the correct answer and a full explanation.

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A combine harvester can be used simultaneously to harvest

  • A. legumes and apply fertilizer
  • B. grains and eradicate weeds
  • C. tubers and distribute fertilizer
  • D. cereals and winnow grainsCorrect

Explanation

A combine harvester combines harvesting and threshing of cereal/grain crops — it cuts the crop, separates the grain from the stalks, and cleans (winnows) the grain by separating it from the chaff, all in one pass.

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