<human>: I have a question about the ozone layer.
<bot>: The ozone layer is a region of the atmosphere that contains a lot of ozone, which is a gas that is made up of three oxygen atoms bonded together. It is located in the stratosphere, which is the layer of the atmosphere that is between 10 and 50 km above the Earth’s surface. The ozone layer absorbs ultraviolet radiation from the Sun, which helps to protect life on Earth from harmful UV radiation.