When floating a ping-pong ball with a hairdryer, which two forces are balanced?

The ping-pong ball will fly up with the air from the hair dryer until it reaches a point of balance – this is where the force of gravity (which pushes the ping-pong ball down) is equal to the force of the air (which is pushing the ping-pong ball up) hop it helps:)

the answer is a. co2, this would be colder than the : )

explanation:

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun