There's many different layers to the Earth's atmosphere, but 75% of Earth's mass is actually going to be residing in the troposphere, where we are located. Also, we see all of Earth's weather occur in ...

The Earth's interior is composed of four layers, three solid and one liquid ... which slowly move around, colliding to build mountains or rifting apart to form new seafloor.

Together, these layers protect us from the sun’s harmful radiation and keep temperatures on Earth habitable for all ... But in areas around the North Pole and the South Pole, the stratosphere ...

The discovery of the “ozone hole” above Antarctica in the mid-1980s sent shockwaves around ... Earth’s ability to bounce back. Once CFC emissions were drastically reduced, the ozone layer ...