They release nutrients in soil. They help make antibiotics. They cause food to spoil. They break down waste.
I gave my students this multiple choice question: Which of these is not a benefit of microorganisms?

Only one answer is correct among these 4 choices:
- They release nutrients in soil.
- They help make antibiotics.
- They cause food to spoil.
- They break down waste.

Could you tell me which one is correct?

They cause food to spoil.