What is the temperature around an aeroplane flying at an altitude of 4000 metres if the temperature on the earth surface is 40 oC?

Assessment: WAEC SSCE - Geography - 2023 (Objective) Subject: Geography

Question 1 Report

What is the temperature around an aeroplane flying at an altitude of 4000 metres if the temperature on the earth surface is 40 oC?

Answer Details

Initial temperature = 40oC
Final temperature = ?
According to lapse rate
1000m ascent = 6.5oC decrease in temp.
4000m =x
4000 = 6.5 x 4=26.0oC
Final temp. = (40o -26o)C=14oC

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