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The ozone layer is located in which layer of the Earth's atmosphere?
A. Troposphere
B. Hydrosphere
C. Stratosphere
D. Lithosphere

seo-qna
Last updated date: 13th Jun 2024
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Answer
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Hint: Earth's atmosphere is composed of five layers which are extended to different heights. Ozone gases are found in the second layer starting from the Earth and it is a cloud free layer of the atmosphere.

Complete answer:
The ozone layer is located in the stratosphere, at a height of $15 - 30\;{\text{km}}$. It is about $21\% $ of the atmosphere of the Earth.
As we all know, the atmosphere is the mixture of gases that envelopes the earth all around. The atmosphere makes our earth habitable. It has many important components like, life-giving oxygen, UV protecting ozone, water vapor, etc.
Structure of the atmosphere
The atmosphere is vertically divided into five layers based on density and temperature. The density of the atmosphere decreases with an increase in the height i.e. density is maximum near the surface minimum at far away from the surface. The Earth’s atmosphere is divided into five layers - Troposphere, Stratosphere, Mesosphere, Ionosphere, and Exosphere. See the figure below;

seo images

Troposphere: It is the lowermost layer extended up to an average height of $0 - 10\;{\text{km}}$. All the biological activity takes place in this layer.
Stratosphere: It is the layer that comes next to the troposphere extended from $10 - 30\;{\text{km}}$. The ozone layer is present in this layer, it acts as a filter against harmful UV radiation.
Mesosphere: It layer above the stratosphere extended from $30 - 50\;{\text{km}}$.
Ionosphere: It is next to the mesosphere from $50 - 400\;{\text{km}}$. It contains ionic particles.
Exosphere: It is the outermost layers present beyond $400\;{\text{km}}$. It has only a few particles.

Additional information: Hydrosphere and Lithosphere is the feature of the earth surface. Hydrosphere refers to all the water present on the earth's surface i.e. in the form of the ocean, lakes, etc. The lithosphere consists of all the land present on the earth surface i.e. mountains, land, etc.

Note: Ozone layer is depleting day by day, which is very harmful for all the living. This happens due to the release of Halogen and CFCs (Chlorofluorocarbons) gases. These gases release from air conditioners, refrigerators and also aerosol sprays.