By the early 1900s, scientists had identified major layers of the atmosphere based on how the temperature changed at different levels above the sea. Thanks to these studies, we now know the five ...

Earth's atmosphere is divided into several distinct layers, each characterized by specific temperature variations, composition, and phenomena. Below are the primary layers of the atmosphere, from the ...

Many human activities release polluting gases into the atmosphere, such as farming animals ... have different structures and properties. Rock types There are three types of rocks on Earth, igneous ...

The atmosphere is a mixture of gases. The atmosphere is mostly nitrogen (approximately 80%) and oxygen (approximately 20%). The remaining gases are found in much smaller proportions, such as ...