Which of the following are the correct adaptations for gliding? A.)wings curved up in the back to lift bird as air flows up behind it, and front edges forcing all air downward under the
wings
B.)kiting helps birds glide forward
C.)wings curved down in back to lift bird as air pushes up and rounded front edge guiding the air up, creating a 'suction'
of lifted air
D.)wings are even on top and bottom to create the greatest possible flying surface