Fact 1: If an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity.

Fact 2: An object is buoyant when it is less dense than the fluid around it.

Given the two facts above, answer the question "What decreases when the density of an object increases?" with the following options: 
- support
 - heat
 - forces
 - air cools
 - heat energy
 - buoyancy
 - Pollution
 - dry and hot


 

      buoyancy   