Both substances mix evenly. Both substances can evaporate. One substance dissolves into another. One substance can be separated from the other.
Sarah's class is learning about mixtures and solutions. Her teacher writes four statements on the board. Which statement best describes a mixture?

Options:
- Both substances mix evenly.
- Both substances can evaporate.
- One substance dissolves into another.
- One substance can be separated from the other.

One substance can be separated from the other.