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Andreyy89
3 years ago
11

Justify why does a bird flap its wing to fly higher??​

Physics
1 answer:
SpyIntel [72]3 years ago
8 0

Answer:

they use thermals and air currents to glide.

Explanation:

when they flap higher they use thermals and air currents  because flapping takes a lot of fuel,energy

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