The high temperature in the upper thermosphere
A)is more a measure of sensible temperature than kinetic energy.
B)is more a measure of kinetic energy than sensible temperature.
C)produces a tremendous amount of heat transfer.
D)is produced by the absorption of UV radiation.

Question

Quizplus · Accepted Answer

The high temperature in the upper thermosphere is due to the high kinetic energy of the gas molecules, which are highly ionized and moving at very high speeds due to their exposure to intense solar radiation. This high kinetic energy is what causes the high temperatures in this region.

The High Temperature in the Upper Thermosphere