Newton's theory of gravity Mendel's experiments with pea plants Franklin's experiments with electricity Darwin's research on the Galapagos islands
I gave my students this multiple choice question: Which had the greatest impact on the way humans heat their homes?

Only one answer is correct among these 4 choices:
- Newton's theory of gravity
- Mendel's experiments with pea plants
- Franklin's experiments with electricity
- Darwin's research on the Galapagos islands

Could you tell me which one is correct?

Franklin's experiments with electricity