If two balanced forces act on an object in opposite directions then that object will remain stationary, and if an object is at equilibrium, then the forces are balanced. Given these facts, what is a stationary object among the following options:
- moving
 - in the frog family
 - Under 32 degrees
 - dying
 - By coral exoskeletons
 - at equilibrium
 - solid, liquid, gas
 - h2o


 

      at equilibrium   