The ozone layer shields the earth from most of the harmful radiation and light comming from the sun. The ozone reflects and absorbs the ultraviolet rays that try to come in. Without this kind of protection, all living things will be effected by these UV rays. Skin cancer develops in most living mammals as a cause of an overabundance of the suns ultraviolet rays. The ozone layer is located in the earth's stratosphere. The ozone layer is located from about fifteen-to-thirty kilometers above the earths surface. The ozone is made up of three oxygen atoms bonded to form O3. This mixture is different from the oxygen we breathe. The ozone is colored blue and has a remarkably strong odor. The ozone molecule is a very rare molecule. If you are given ten million air molecules, only three molecules will be the ozone molecule. Even a small portion of the ozone will play an important role of protecting the earth. The ozone aborbs a port
ion of of the radiation that is given off by the sun. The most important radiation the ozone absorbs is the ultraviolet light, UVB. The UVB light has linked to skin cancer, cataracts, damage to crops, and some types of marine life. The types of effects that are formed by overexposure to these harmful UV rays are skin cancer (melanoma and nonmelanoma), cataracts and other types of eye damage, immune system supperession, and premature aging of the skin. It is a fact that one in every five Americans will develop some type of skin cancer in their lifetime. Also, every hour one American dies of skin cancer. The most deadly type of skin cancer is melanoma. This cancer is the most serious and fastest growing cancer in the United States today. The case of this cancer in the past two decades have doubled. This figure is still expected to rise. Nonmelanoma skin cancer are not as deadly as the melanoma cancer. In 1999 more than 960,00
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