rolling steel into thin sheets burning coal for electricity clear-cutting a forest planting a cover crop
I gave my students this multiple choice question: Which activity would most likely increase water turbidity in a nearby stream?

Only one answer is correct among these 4 choices:
- rolling steel into thin sheets
- burning coal for electricity
- clear-cutting a forest
- planting a cover crop

Could you tell me which one is correct?

clear-cutting a forest