Fact 1: Beads of water are formed by water vapor condensing.

Fact 2: Condensation of water vapor occurs during the chilling season.

Given the two facts above, answer the question "Beads of water are formed when?" with the following options: 
- heat is produced
 - Temperature changing
 - forest is destroyed
 - refract or absorb.
 - body temperature reduces
 - precipitation
 - Movement of an air mass
 - during the chilling season


 

        during the chilling season 