Answer:
I don't know about it so yeah
1614 ft each minute
Explanation:
In 2.5 minute, elevation =4035
In 4 minute elevation =6456
In 4-2.5 minute elevation = 6456-4035=2421
in 1.5 minute elevation = 2421
in 1 minute elevation = 2421/1.5=1614
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