Question

Which of the following is the correct order of atmospheric layers with respect to altitude increase?

(a) Exosphere < Thermosphere < Mesosphere < Stratosphere < Troposphere

(b) Thermosphere < Stratosphere < Mesosphere < Troposphere < Exosphere

(c) Troposphere < Stratosphere < Mesosphere < Thermosphere < Exosphere

(d) Troposphere < Stratosphere < Mesosphere < Exosphere  < Thermosphere

The question was posed to me during an interview.

Origin of the question is Vertical Development of Air in portion Atmosphere and Air Data Measurement of Aircraft Performance

Answer 1

The correct option is (c) Troposphere < Stratosphere < Mesosphere < Thermosphere < Exosphere

The explanation is: The correct order of atmospheric layers with respect to altitude increase is troposphere < Stratosphere < Mesosphere < Thermosphere < Exosphere. The altitude range of troposphere is  8km to 18km. The altitude range of stratosphere is 18km to 50km. The altitude range of mesosphere is 50km to 85km. The altitude range of thermosphere is 90km to 500km. The altitude range of exosphere is 500km to 10000km.