Fact 1: If something is outside during the day then that something will receive sunlight.

Fact 2: Chlorine is dissipated rapidly by sunlight.

Given the two facts above, answer the question "What make chlorine dissipate rapidly?" with the following options: 
- being kept in the dark
 - local weather changes
 - fissures of hot, acidic water
 - being outside at night
 - being outside during the day
 - circulatory systems
 - being contained in a bottle
 - The bending of a ray of light


 

     being outside during the day    