From the Earth's gravity From the Sun's light From the heat in the Earth's core From the air's carbon dioxide
I gave my students this multiple choice question: Beans and coal both have stored energy. Where did the energy come from that is stored in beans and coal?

Only one answer is correct among these 4 choices:
- From the Earth's gravity
- From the Sun's light
- From the heat in the Earth's core
- From the air's carbon dioxide

Could you tell me which one is correct?

From the Sun's light