Question

function of stream line body of birds
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Answer 1

Answer:

It occurs when the fluid closest to the object sticks to its surface, exerting a force that opposes the object's motion. Many animals, such as birds and dolphins, and many machines, such as airplanes and submarines, have streamlined bodies to reduce friction drag as they move through either air or water.

Explanation:

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Answer 2

To decrease the air friction