In the Outer Most Layer of the Atmosphere, Gas Molecules

Multiple Choice

In the outer most layer of the atmosphere, gas molecules can have a temperature of 1000°C because_____ .

A) that is the temperature of the solar radiation
B) temperature is defined as the average speed at which molecules move and the molecules move rapidly there
C) that is the speed of the individual molecules
D) that is the temperature of an object that is entering Earth's atmosphere at a high speed
E) none of the above