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Greenhouse Effect On a bright cool day most people notice the suns rays as feeling good on their skin By nature many of us even try to stay on the sunny side of the street while walking The sun is 93 million miles away from earth and its energy travels to us in moving waves called radiation The energy becomes heat light and other energy tooVisible sunlight allows us to see the world around us but there is invisible sunlight too These rays cant be seen but some can be felt as heat They are called ultraviolet rays and they are what changes the appearance of the skin like wrinkles and even cancer I discovered a blanket of gases known as the atmosphere surrounding our planet It is what provides us with the air we breathe and it protects us from the full blast of the suns radiation Way up there in the part of the atmosphere called the stratosphere a layer of gas called ozone filters out most of the suns damaging ultraviolet rays This happens about five miles to 25 miles above the surface of Earth Bright 14-15 Only about one- millionth of our atmosphere is made up of ozone But it has an important job Ozone can absorb the part of the sunlight called ultraviolet radiation Some ultraviolet radiation still gets through but not enough to do serious damage to Earth Because if it got through
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