1. What is the stratosphere?
2. What is the approximate percentage of nitrogen in Earth's atmosphere?
3. What is the primary role of the solar radiation balance in Earth's climate system?
Atmospheric Layers â main?
Troposphere, stratosphere, mesosphere, thermosphere, exosphere.
Composition â major gases?
Nitrogen (~78%) and oxygen (~21%).
Solar balance â key process?
Balance between incoming solar and outgoing infrared radiation.
Troposphere â definition?
Lowest layer; weather occurs here.
Stratosphere â role?
Contains ozone, absorbs UV radiation.
Mesosphere â temperature trend?
Temperatures decrease with altitude.
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