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In which layer of the atmosphere is the ozone layer located?
Troposphere
Stratosphere
Mesosphere
Thermosphere
The correct answer is: Stratosphere
The ozone layer is located in the stratosphere, which is the second layer of Earth's atmosphere, situated above the troposphere and below the mesosphere. This layer is significant because it contains a high concentration of ozone (O₃) molecules that absorb the majority of the sun's harmful ultraviolet radiation. The presence of ozone in the stratosphere plays a critical role in protecting living organisms on Earth by filtering out harmful UV rays that can lead to skin cancer and other health issues, as well as environmental impacts such as damage to crops and marine ecosystems. The structure of the stratosphere allows for the formation and stability of the ozone layer, which is essential for maintaining the planet's ecological balance.