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A migratory bird always prefer to fly at high altitude because it

A migratory bird always prefer to fly at high altitude because it

Grade:7

1 Answers

Vasanth SR
askIITians Faculty 1310 Points
3 years ago
Birds save energy by dipping lower when air gets thinner

To preserve energy, geese avoid flapping harder and harder in very thin air

Birds track underlying terrain - even if this means repeatedly shedding hard-won altitude - then later regain height

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