The Atmosphere

1. Energy From the Sun
2. Energy at Earth's Surface
3. Energy in the Atmosphere

Annotations:

• Weather: The condition of Earth's atmosphere at a particular time and place. Atmosphere: The envelope of gases that surrounds the planet.

1. Nitrogen

   Annotations:

   • Nitrogen: Oxygen: Carbon Dioxide: Other Gases: Water Vapor: Particles:
2. Air Quality
3. Composition of the Atmosphere

   Annotations:

   • Earth's atmosphere is made up of nitrogen, oxygen, carbon dioxide, water vapor, and many other gases, as well as particles of liquids and solids.
4. Improving Air Quality
5. Importance of the Atmosphere

1. Measuring Air Pressure
2. Properties of Air
3. Altitude and the Properties of Air

1. Local Winds
2. Global Wind Belts
3. What is Wind?
4. Global Winds

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere

1. Energy at Earth's Surface
2. Energy in the Atmosphere
3. Energy From the Sun