reading a book about farm fields making a weather prediction for the forests measuring the wind speed at both locations recording the temperatures at both locations
I gave my students this multiple choice question: A hiker wants to know if air is warmer in a forest than in the nearby farm field. Which activity would best help the hiker find out which area is warmer?

Only one answer is correct among these 4 choices:
- reading a book about farm fields
- making a weather prediction for the forests
- measuring the wind speed at both locations
- recording the temperatures at both locations

Could you tell me which one is correct?

recording the temperatures at both locations