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WAEC Agricultural Science 2023 Question 8

Question 8

Farm Power

The diagrams below illustrate different sources of farm power.
Which of the illustrated sources of farm power decreases in efficiency due to constant use?

Diagram for this question
  1. A.I and II only.
  2. B.I and III only.
  3. C.II and III only
  4. D.I, II and III
Show the answer and explanation

Answer: D (I, II and III)

Explanation

Humans and animals tire, and tractors wear with continuous use.