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The Earths ozone layer shields all life on the planet from the suns harmful radiation and is extremely important to all life on the planet but we as a human race are now faced with a very important question This question is Is the Earthsozone layer really depleting and if it is is it really a threat There is evidence that less protection from ultraviolet rays will over time lead to increased amounts skin cancer cataract and even crop damage With cooperation with over 140 oth countries the United States is ridding the Earth of the production of ozone-depleting substances in a world wide effort to save our ozone layer Although before I try to go and answer the big question I must first understand the chemistry involvedThe Earths atmosphere is divided into many layers such as the troposphere and the stratosphere and the majority of what is known as ozone is located in the stratosphere Ozone is a molecule consisting of three oxygen atoms and it is blue incolor and has a strong odor In the entire atmosphere out of each ten million air molecules about two million are normal oxygen Although there are even less ozone molecules at three in ten million ozone plays a primary part in the protection of a life on the planet The ozone layer is so important because it absorbs a portion of the radiation from the sun which prevents it from reaching the Earths surface and harming living organisms The most harmful of the radiation that it absorbs is the pe of ultraviolet light known as UV-B which has been associated with forms of skin cancer cataracts and harm to some crops certain materials and some kinds of marine lifeIn the course of any given day ozone molecules are continually being formed and destroyed in the atmosphere and the total amount of it remains fairly stable but in recent years there has been some evidence that the
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