In which sphere of atmosphere the Ozone layer is situated?

The ozone layer is situated in the **stratosphere** of the Earth’s atmosphere. The stratosphere is the second major layer of Earth’s atmosphere, located above the troposphere and below the mesosphere. It extends from about 10 to 50 kilometers (6 to 31 miles) above the Earth’s surface.

The ozone layer is a region within the lower portion of the stratosphere, approximately 15 to 35 kilometers (9 to 22 miles) above the Earth’s surface. It contains a high concentration of ozone molecules (O3), which form naturally and serve to absorb and filter out a significant portion of the Sun’s ultraviolet (UV) radiation. This absorption process is important for protecting life on Earth from the harmful effects of UV radiation, which can cause skin cancer, cataracts, and damage to plant and animal life.

Human activities, such as the release of ozone-depleting substances like chlorofluorocarbons (CFCs), have led to the depletion of the ozone layer in certain regions, particularly over Antarctica (resulting in the ozone hole). International agreements like the Montreal Protocol have been implemented to phase out the production and use of ozone-depleting substances, contributing to the recovery of the ozone layer in recent years.