closer together than air molecules. more easily moved than air molecules. moving faster than air molecules. larger than air molecules.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Sound is able to travel faster in solids than in air because the molecules in a solid are
Possibilities:
- closer together than air molecules.
- more easily moved than air molecules.
- moving faster than air molecules.
- larger than air molecules.

closer together than air molecules.