Explain the role of the ozone layer in sustaining life on earth.

Ozone is a layer of gas in the atmosphere that is represented by O₃. It has an essential role in sustaining life forms on earth. It prevents the harmful ultraviolet rays ( that come from sun) to reach the earth. These radiations are absorbed by ozone layer and therefore it acts like a protective shielding layer for the planet earth.

Harmful UV radiation can otherwise cause damage to the life forms ( like sun burns, skin cancer).

Thus, it helps in sustaining life forms.

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