If an airplane was flying at an altitude of 9,144 m, what air temperature would it experience?

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Whats one way that rocks do not follow the typical rock cycle pathway?

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.