Small numbers of plants cause rain to fall more often. Large numbers of houses cause the wind to be stronger. Small areas of open water cause fog to be more common. Large areas of pavement cause the temperature to be hotter.
I gave my students this multiple choice question: Which is an effect that cities have on the weather?

Only one answer is correct among these 4 choices:
- Small numbers of plants cause rain to fall more often.
- Large numbers of houses cause the wind to be stronger.
- Small areas of open water cause fog to be more common.
- Large areas of pavement cause the temperature to be hotter.

Could you tell me which one is correct?

Large areas of pavement cause the temperature to be hotter.