The following situations might be described (or well approximated) as one of the 4 types of thermodynamic systems. Choose the correct one (if any).

1. You let bread rise on the counter.

2. A sealed cooler of dry ice evaporates. 3. You boil water in a pressure cooker.

4. Oxygen is carried from your lungs to cells

in your blood vessels.

5. A bag of chips deflates in cold weather.