Ponds have moving water. Ponds are smaller and shallower. Ponds are not surrounded by land. Ponds have a different amount of salt.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: How is a pond different from a lake?
Possibilities:
- Ponds have moving water.
- Ponds are smaller and shallower.
- Ponds are not surrounded by land.
- Ponds have a different amount of salt.

Ponds are smaller and shallower.