Ⅰ. The Major Layers in the Atmosphere.
Temperature Change in the Atmosphere.
Pressure and Density Changes in the Atmosphere.
Ⅱ. Composition of the Atmosphere.
Ⅲ. Units Used to Describe Atmospheric Chemistry.
Ⅳ. Energy balance.
Electromagnetic Radiation.
The Earth’s Heat Balance.
Ⅴ. Particles in the Atmosphere.
Electromagnetic Radiation.
Suspended Particulate Matter.
Aerosol Particles.
Anthropogenic Sources of Particulate Matter.
Residence Times of Particles.
Anthropogenic Sources of particulate Matter.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere can be divided vertically into four major layers : troposphere, stratosphere, mesosphere, and thermosphere.
Figure 2.1 The earth’s atmosphere is subdivided vertically into four major regions based on the air-temperature profile. The ozone layer that protects us from the sun’s UV radiation is in the stratosphere.

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