Overview of the Earth’s Atmosphere Composition of the Atmosphere The Early Atmosphere Vertical Structure of the Atmosphere A Brief Look at Air Pressure and Air Density Layers of the Atmosphere Focus on an Observation: The Radiosonde The Ionosphere Weather and Climate A Satellite’s View of the Weather Storms of All Sizes A Look at a Weather Map Weather and Climate in Our Lives Focus on a Special Topic: Meteorology—A Brief History Summary Key Terms Questions for Review Questions for Thought and Exploration · · · · · · (收起)