Hello can someone help me Science with Newton's Third Law of Motion

Newton's Third Law: Action & Reaction

His third law states that for every action (force) in nature there is an equal and opposite reaction. If object A exerts a force on object B, object B also exerts an equal and opposite force on object A. In other words, forces result from interactions.

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

d) physical means can be used to separate the components of air.