1. Troposphere:

- Closest layer to Earth's surface

- Contains most of Earth's weather and air we breathe

- Temperature generally decreases with increasing altitude

2. Stratosphere:

- Location of the ozone layer, which protects life from harmful ultraviolet (UV) radiation

- Temperature increases with increasing altitude

3. Mesosphere:

- Meteoroids often burn up in this layer as they enter Earth's atmosphere, creating visible streaks of light (meteors)

- Temperature decreases with increasing altitude

4. Thermosphere:

- Highest layer of Earth's atmosphere

- Temperature can reach extremely high levels due to absorption of solar radiation

5. Exosphere:

- Outermost layer, where Earth's atmosphere merges with space

- Extremely thin layer with very few molecules, gradually merging into the vacuum of space