| Show aviators aviator dangers dancer the evet iness ut of tilt air while atille flying varies with the temperature it if the air la Is worm warm or what 1 Is q caller thin air it ts Is difficult to tt gain attitude altitude in cold or at dense clr it 1 la easy to gaill attitude altitude tile the air over oer cities Is w warm firm er than over the surrounding country tt it Is when a dyer approaches air that the plane has a tendency to lose in ill some ill ces a change chang from cold to tn worm nir Is very verv it that ts Is known as an air pocket or bumpy air |