Have you ever wondered about the fascinating reason why there is known life on earth only? Yes, it is because of oxygen, but not just the oxygen that you breathe, but also because of the oxygen that protects you from the sun. This oxygen settles and surrounds the earth in a thin layer and helps reduce harmful ultraviolet (UV-B) rays from reaching the earth’s surface making life possible on earth.
However, due to various reasons, including the urban lifestyle like that of Kathmandu, the ozone layer is depleting day by day. What is ozone layer depletion? What activities in Nepal are causing it? How can you contribute to preserving it?
On the occasion of International Day for the Preservation of the Ozone Layer, we discuss all of them today.
What is the ozone layer?
The ozone layer is a thin layer of the earth’s atmosphere with a relatively high concentration of ozone (made up of three oxygen molecules or O₃). This layer ranges from 15 to 35 km in the earth’s atmosphere, in the lower portion of the stratosphere. It absorbs most of the harmful UV-B rays and protects the earth from
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