Which of the following modes of transport uses the least amount of energy per kilometre to carry a person from the market to home? 1) Walking, 2) Bicycle, 3) Bus, 4) Car
Answer
Walking
The correct answer is Walking — Energy used per kilometre is smallest for walking.
Step-by-step solution
- Walking requires only the person's own energy.
- Bicycle needs a small amount of muscle power.
- Bus and Car require fuel or electricity.
- Energy used per kilometre is smallest for walking.
Common mistake: Choosing bicycle because it is still human‑powered
Concept tested: Energy efficiency of transport
Published · How this solution was prepared and checked
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