Hills are smaller and more rounded. Hills are deeper and more level. Hills are steeper and rockier. Hills are taller and snowy.
I gave my students this multiple choice question: In which ways are hills most different from mountains?

Only one answer is correct among these 4 choices:
- Hills are smaller and more rounded.
- Hills are deeper and more level.
- Hills are steeper and rockier.
- Hills are taller and snowy.

Could you tell me which one is correct?

Hills are smaller and more rounded.