Trivea De Stratosphère et l'ozone

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Planet earth has its own natural sunscreen that shields us from the sun’s damaging ultraviolet radiation. It’s called the Ozone layer which is nothing but a fragile band of gases beginning 15 Km above our planet and reaching up to 40 Km level. Life as we know it wouldn’t be possible without this layer of protection. In 1957, Professor Gordon Dobson of Oxford University discovered the ozone layer. Ozone is made up of three atoms of oxygen therefore its chemical formula is O3. It is a highly reactive gas. It occurs naturally as well as a man-made product. The ozone layer lies in the stratosphere which is above the troposphere and below the mesosphere, in the upper level of our atmosphere. Stratospheric ozone filters out most of the sun’s potentially harmful shortwave UV radiation.

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