Which of the following layers of the atmosphere contains the ozone layer?

The correct answer is the stratosphere, as this layer of the atmosphere is where the ozone layer is predominantly found. The ozone layer is crucial because it absorbs the majority of the Sun's harmful ultraviolet (UV) radiation, protecting living organisms on Earth from its damaging effects. The stratosphere extends from about 10 to 50 kilometers (6 to 31 miles) above the Earth's surface, and it is characterized by a temperature increase with altitude, which is primarily due to the presence of ozone.

In contrast, the troposphere, which is the lowest layer of the atmosphere, is where weather phenomena occur and does not contain the ozone layer. The mesosphere, located above the stratosphere, features decreasing temperatures and is known for meteors burning up upon entering the Earth's atmosphere. Lastly, the thermosphere is the uppermost layer where temperatures can rise significantly, but it does not contain the ozone layer either. Each of these layers has distinct characteristics and functions, but the stratosphere is uniquely identified as home to the critical ozone layer.