Question

How birds fly by using their wings.Give a scientific reason.

Answer 1

If you tried the paper activity from the front of this article, you might have been surprised by what happened. In most cases a person would think the paper would go down and not lift up when they blow air across the top.

It may not be what you would expect, but it is what birds and planes do to lift off the ground and fly. Blowing faster-moving air above the sheet paper lowered the air pressure above the paper. Now the air pressure below the paper is higher and creates lift. Lift does exactly what it sounds like; it lifts objects off the ground when everything is just right.

or

Light bones – a bird's bones are basically hollow with air sacs and thin, tiny cross pieces to make bones stronger – this reduces the force of weight. a rigid skeleton to provide firm attachments for powerful flight muscles – this helps with the force of thrust. a streamlined body – this helps reduce the force of drag.

Hope this will help you ....✌

Answer 2

By thrust force means which moves an aircraft through the air. Thrusts are created when birds flap their wings using powerful breast muscles. Birds use strong muscles to flap their wings and give them thrusts to move through the air and fly

Hope it helps you!