Ozone Layer The ozone layer is a natural layer that is the part of the Earth's atmosphere. This layer is made up of oxygen and contains high concentrations of ozone O3. Highly concentrated oxygen molecules are part of this layer; this concentrated oxygen is much higher than the concentrations in the lower atmosphere. However, O3 only contributes still small as compared to the main components of the atmosphere. Although the concentration of ozone in the ozone layer is very small, it is vitally important to life because it absorbs biologically harmful ultraviolet (UV) r adiation from the Sun. The "thickness" of the ozone layer - that is, the total amount of ozone in a column overhead - varies by a large factor worldwide, being in general smaller near the equator and larger as one moves towards the poles. It also varies with season, being in general thicker during the spring and thinner during the autumn.
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The ozone layer is a natural layer that is the part of the Earth's atmosphere. This layer is made upof oxygen and contains high concentrations of ozone O3. Highly concentrated oxygen molecules
are part of this layer; this concentrated oxygen is much higher than the concentrations in the
lower atmosphere. However, O3 only contributes still small as compared to the main
components of the atmosphere.
Although the concentration of ozone in the ozone layer is very small, it is vitally important to life
because it absorbs biologically harmful ultraviolet (UV) radiation from the Sun.
The "thickness" of the ozone layer - that is, the total amount of ozone in a column overhead -
varies by a large factor worldwide, being in general smaller near the equator and larger as one
moves towards the poles. It also varies with season, being in general thicker during the spring