Multiple choice A jet plane flies in the air because gravity does not act on bodies moving with high speeds the thrust of the jet compensates for the force of gravity the flow of air around the wings causes an upward force, which compensates for the force of gravity the weight of air whose volume is equal to the volume of the plane is more than the weight of the plane Reveal answer Fill a bubble to check yourself B Correct answer Explanation When a jet plane flies, air passing through its wings and angle or wings is such as the air pressure below the wings is more then upper side of wings so due to this aerodynamic effect plane can fly against gravity.