WAEC Agricultural Science 2023 Objective — Question 8
Question 8 of 50 from the West African Examinations Council (WAEC) Agricultural Science 2023 Objective paper, with the correct answer and a full explanation.
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Which of the illustrated sources of farm power decreases in efficiency due to constant use? A. I and II only B. I and III only C. II and III only D. I, II and III
- A. I and II only
- B. I and III only
- C. II and III only
- D. I, II and IIICorrect
Explanation
Due to wear and tear and lack of adequate maintenance, mechanical power can decrease in efficiency over time. Human power and the use of farm animals can also decrease in efficiency over time due to constant use, attributed to fatigue, injury, health issues and ageing.
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