Atmospheric Layers — main?
Troposphere, stratosphere, mesosphere, thermosphere, exosphere.
Composition — major gases?
Nitrogen (~78%) and oxygen (~21%).
Solar balance — key process?
Balance between incoming solar and outgoing infrared radiation.
Troposphere — definition?
Lowest layer; weather occurs here.
Stratosphere — role?
Contains ozone, absorbs UV radiation.
Mesosphere — temperature trend?
Temperatures decrease with altitude.
Thermosphere — characteristic?
High temperatures due to solar radiation.
Exosphere — features?
Sparse particles, merges with space.
Major gases — example?
Nitrogen (78%) and oxygen (21%).
Ozone layer — location?
Within the stratosphere.
Answer 9 questions on Earth's Atmosphere: Layers and Composition.
1. What is the stratosphere?
2. What is the approximate percentage of nitrogen in Earth's atmosphere?
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