Melissa Rae Shofner 
Earth’s Atmosphere [PDF ebook] 

Earth’s atmosphere plays a very important role in sustaining life on the planet. The atmosphere is made of a very thin layer of air, which covers every inch of Earth’s surface up to the edge of space. The atmosphere is comprised of different chemicals and compounds at any given location, which also means that the atmosphere behaves in different ways at any given location. This book explores the atmosphere’s composition, its behavior, and how it affects life on Earth.