While looking in the sky, you notice birds that are soaring but not moving their wings. How is it possible that they are still flying?

There wings are catching the updraft of wind coming off the ground, which keeps them up, but they will still need to flap every once in a while to keep straight and to maintain velocity.

Answer heart of american                  live in harmony                    hillsides of orchards                    blaze of color                    backdrop of pines;

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  d.landing on and exploring the moon4. which of these space missions involved the deployment of lunar rovers d.apollo5. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar systemb.safir7.which technology limit the future of space exploration b. scientist must first develop certain technologies before missions can be completed.