soil quality wind speeds bird migration water temperature
I gave my students this multiple choice question: The Piedmont and Coastal Plains regions in Maryland produce crops such as corn, soybeans, wheat, tobacco, tomatoes, and apples. Which environmental factor most likely influences which crops are grown in these regions?

Only one answer is correct among these 4 choices:
- soil quality
- wind speeds
- bird migration
- water temperature

Could you tell me which one is correct?

soil quality