Ozone, a gas found in the upper stratosphere and lower mesosphere, would burn our throats if we tried to breathe it. ozone is composed of

Three atoms of oxygen.

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Ozone is composed of three oxygen atoms (O₃). It is formed when oxygen molecules (O₂) are exposed to high-energy ultraviolet (UV) radiation from the sun or through lightning discharges. The UV radiation breaks apart the oxygen molecules into individual oxygen atoms, and these atoms can then react with other oxygen molecules to form ozone.

Ozone is a pale blue gas that has a distinct odor. It is commonly found in the Earth's stratosphere, which is the layer of the atmosphere located about 10 to 50 kilometers above the Earth's surface. The stratospheric ozone layer plays a crucial role in protecting life on Earth by absorbing most of the Sun's harmful ultraviolet (UV-B and UV-C) radiation. This absorption helps in preventing these harmful rays from reaching the Earth's surface, as overexposure to UV radiation can cause various health issues, including skin cancer and cataracts.

While the ozone layer in the stratosphere is beneficial, ozone at ground level (in the troposphere) can be harmful to human health. Ground-level ozone is primarily formed by the reaction of pollutants emitted from human activities such as vehicle emissions and industrial processes, in the presence of sunlight. Breathing in high levels of ozone can cause respiratory problems, such as coughing, throat irritation, chest pain, and shortness of breath.

In summary, ozone is composed of three oxygen atoms (O₃) and is beneficial in the upper stratosphere as it absorbs harmful UV radiation, protecting life on Earth. However, at ground level, it can be harmful and cause respiratory issues if inhaled.