On a hot day, sweat forms on a person's skin and then evaporates.
a. Describe the process of condensation in terms of particles and temperature.
b. Explain, in terms of molecules, how the evaporation of sweat cools the person.
c. Explain why this process is more effective when a wind is blowing.
d. Boiling and evaporation are similar processes. State two differences between boiling and evaporation.