The thermosphere is the first layer of the atmosphere where there are enough heavier molecules (oxygen) to absorb a significant anount of the Sun's radiation. Below the thermosphere, much of the heat is dissipated by convective currents.
Although technically "hot", the gas in the thermosphere is so thin that it can pass little heat to other molecules, and loss of heat by radiation would still cool objects in this part of the atmosphere.
the sun's radiation strikes it first
Humans live their lives in the troposphere.
Chlorofluorocarbons damage the protective ozone layer.
Along cold water currents from the poles to the equator.
IT is closest to the sun
mesophere
nitrogen
It gets warmer-Apex
The polar jet stream lies between the polar easterlies and trade winds