irradiating food organic fertilizers bacteria to clean up oil spills developing larger, sweeter strawberries
I gave my students this multiple choice question: Research in which of these areas has the greatest impact on the environment?

Only one answer is correct among these 4 choices:
- irradiating food
- organic fertilizers
- bacteria to clean up oil spills
- developing larger, sweeter strawberries

Could you tell me which one is correct?

bacteria to clean up oil spills