A glass bottle would sink instead of floating if there was no air inside of it
I believe the answer is: <span>Tension building
refers to situation where every little thing that we spot being done by the other party started to resulted in bigger conflict/confrontation.
Up to this point, one or both partners would start to develop some sort of deep resentment toward their partners.</span><span />
They both require respective heads of the executive branch of government.
