Sunlight on the skin produces energy. Water provides the majority of energy. Food and oxygen combine to deliver energy. Sleep provides energy stored at night for the next day.
I gave my students this multiple choice question: How does a human body get energy?

Only one answer is correct among these 4 choices:
- Sunlight on the skin produces energy.
- Water provides the majority of energy.
- Food and oxygen combine to deliver energy.
- Sleep provides energy stored at night for the next day.

Could you tell me which one is correct?

Food and oxygen combine to deliver energy.