Over time, they noticed that the atmosphere had distinct layers. By the early 1900s, scientists had identified major layers of the atmosphere based on how the temperature changed at different ...

A layer of charged particles, called the ionosphere, surrounds Earth, extending from about 50 to 400 miles above the surface of the planet. Disclaimer: AAAS and EurekAlert! are not responsible for ...

About 10% of the ozone in the atmosphere is found in the troposphere, the layer we live in; the rest is found in the stratosphere, about 10–50 kilometers (6–30 miles) above the Earth’s surface. Good ...