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Free research essays on topics related to: ultraviolet

45 results found, view free essays on page:

  • Released Into The Atmosphere Sulfur Dioxide
    1,318 words
    Every thing present in this universe is a part of environment including ourselves. Whether they are animals, living thing, or nonliving things. All of the external factors affecting an organism. These factors may be other living organisms (biotic factors) or nonliving variables (abiotic factors), such as water, soil, climate, light, and oxygen. All interacting biotic and abiotic factors together make up an ecosystem. Organisms and their environment constantly interact, and both are changed by th...
    Free research essays on topics related to: acid rain, carbon dioxide, nitrous oxide, released into the atmosphere, sulfur dioxide
  • Ultraviolet Radiation Ozone Layer
    1,027 words
    Greenhouse Effect On a bright, cool day, most people notice the sun's 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 too. Visible sunlight allows us to see the world around us, but there is invisible sunlight, too. These rays can't be seen, but some can be felt as heat....
    Free research essays on topics related to: ultraviolet radiation, carbon dioxide, ozone layer, ultraviolet rays, greenhouse effect
  • Ozone Depletion Ozone Layer
    1,344 words
    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 Earths ozone 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 countrie...
    Free research essays on topics related to: ozone layer, ozone molecules, ozone depletion, ozone depleting, ultraviolet radiation
  • Billion Years Ago Million Years Ago
    687 words
    The Principle Events in the Evolution of the Earth's Atmosphere The literal translation of the word atmosphere is "sphere of vapors." The Earth's atmosphere is a protective sphere of vapors, or air that surrounds the Earth and provides it with a layer of insulation from the harmful rays of the sun. It is a vital part of the Earth, and has changed dramatically since the beginning of time. The earth's atmosphere has gradually changed since the Earth's birth approximately 4. 6 million years ago. In...
    Free research essays on topics related to: earths atmosphere, billion years ago, million years ago, carbon dioxide, 2 h 2 o
  • The Ozone A Hole In Theory
    2,446 words
    ... Watson, head of the ozone trends panel a supporter of the CFC banning: "Probably more people would die from food as a consequence of inadequate refrigeration than would die from depleting ozone. " An environmental scientist knowingly sending 20 - 40 million people to their deaths yearly! Banning CFCs would not only kill 20 - 40 million a year it will also lower the health of the remaining living people, by causing world-wide hunger, and food-borne diseases (Howard)! These are the type of peo...
    Free research essays on topics related to: nj prentice hall, greenhouse gasses, ultraviolet rays, ozone depletion, green house effect
  • Skin Cancer Ultraviolet Radiation
    1,554 words
    Skin cancer is a disease that can affect any one. Skin cancer includes many types that can be classified as severe or superficial. Consequently, treatment of skin cancer depends on the degree of severity a person has. In the following paper, we will shed lights on the types of skin cancer and its causes. Finally, we will investigate how to treat the different types of cancer and how to avoid it. Skin cancer is a term used to describe cancer in skin tissues. The skin is made of several layers. Sk...
    Free research essays on topics related to: skin cancer, uv radiation, uv rays, ultraviolet radiation, basal cell
  • Methyl Bromide Uv Radiation
    627 words
    Ozone is a form of oxygen that is a human-made pollutant in the troposphere but a naturally produced, essential component in the stratosphere, which encircles our planet some 6 to 28 miles above the surface. The stratosphere contains a layer of ozone that shields the surface from much of the ultraviolet radiation coming from the sun. If ozone was to disappear from the stratosphere Earth would be uninhabitable for most organisms. The primary cause for this substantial ozone loss is a group of com...
    Free research essays on topics related to: uv rays, uv radiation, methyl bromide, global warming, ultraviolet radiation
  • Piece Of Paper Oxygen Molecules
    1,524 words
    In 1839, a German scientist Christian Schonbein was a professor of chemistry at the University of Basel in Switzerland. In addition to his teaching duties, he regularly performed secret experiments in hopes of finding out which substances make up the Earth's atmosphere. So Schonbein combined and separated a number of liquids and gases. During one of these experiments, Schonbein passed an electric charge thought a glass beaker of water, be noticed a very familiar odor. He first thought it was the...
    Free research essays on topics related to: ozone levels, piece of paper, stratospheric ozone, oxygen molecules, oxygen atoms
  • Harmful Effects Skin Cancer
    1,653 words
    Sunscreen (1) We are all aware of the effects that sunray's cause to our skin, if it is being exposed to them for too long. It only takes a few minutes of suns radiation being applied to protein in skins cells, to initiate tanning, which is actually the process of protein losing its organic essence. If we stay under the direct sunray's for too long, it will inevitably result in getting sunburn, on our part. In its turn, sunburn often initiates skin cancer. This is why healthcare specialists stro...
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  • Environmental Protection Agency Ozone Depletion
    1,137 words
    The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger, additional ultraviolet rays are allowed to pass through. These rays cause cancer, cataracts, and lowered immunity to diseases. 1 What causes the depletion of the ozone layer? In 1970, Crutzen first showed that nitrogen oxides produced by decaying nitrous oxide from soil-borne microbes react catalytically with ozone hastening its depletion. His findings started research on...
    Free research essays on topics related to: volcanic eruptions, ozone depletion, ozone depleting, environmental protection agency, methyl bromide
  • Ozone Layer Ultraviolet Rays
    962 words
    The Problem The atmospheric ozone layer protects all living things from the harmful effects of the Sun. In recent years however, much damage has been caused to the ozone layer, causing it to decrease in size. The depletion of the ozone layer has and will continue to have many detrimental effects on all living things on this planet. A thinner layer will allow more of the suns ultraviolet radiation to reach the Earths surface. In particular, it will be the increase of UV-B rays which will have the...
    Free research essays on topics related to: ultraviolet rays, stratospheric ozone, earths surface, ozone layer, ultraviolet radiation
  • Ultraviolet Rays Gamma Rays
    343 words
    I went to Hawaii on vacation to get a tan, but I got something else instead. Ultraviolet rays are stronger, and hotter near the equator. When I got home I got x-rays. I was sent for treatment with gamma rays. Wow! What a vacation. It was so hot that I had to jump into a pool just to cool off. Ultraviolet rays have wavelengths between 10 nm and 430 nm. They also have a very high frequency of about 10, 000, 000, 000, 000, 000 Hz. - 1, 000, 000, 000, 000, 000, 000 Hz. Photon energy emissions are al...
    Free research essays on topics related to: skin cancer, cancer cells, gamma rays, x rays, ultraviolet rays
  • Ozone Layer Ultraviolet Radiation
    1,135 words
    Environmental Concerns: The Depletion Of The OzoneEnviormental Concerns: The Depletion Of The Ozone Layer Environmental Concerns: The Ozone Layer By David Wood Everyday millions of people are exposed to an invisible danger. An unseen danger that can cause horrible and drastic effects. Something so horrible that without prevention could lead to a horrible future. This danger is the depleting of the Ozone Layer. As it gets thinner and thinner more and more harmful UV rays will pass into our atmosp...
    Free research essays on topics related to: earth , ultraviolet radiation, ozone layer, uv rays, environmental concerns
  • Role In Human Ultraviolet Radiation
    1,938 words
    Melanin: Its Influence In Human Evolution Melanin has played a significant role in human evolution. In this paper I will discuss the importance of melanin in its role in the human biological system and how it relates to the natural selection of suitable human life according to geography and environment. Human pigmentation is influenced by hemoglobins within blood vessels in the skin, carotene and melanin's. Melanin, the basis of pigmentation, can be found in the forms of eu melanin and phaeomela...
    Free research essays on topics related to: dark skinned, ultraviolet radiation, role in human, uv radiation, ozone depletion
  • Ozone Layer Ultraviolet Rays
    1,260 words
    Atmospheric ozone layer depletion is a serious problem currently facing the world. The ozone layer protects humans, animals, and plants from harmful ultraviolet rays. Money and time are being spent on ozone repair, but the problem still exists. The ozone layer is a region of the stratosphere containing ozone, or O 3 gas. The ozone layer is essential to both plant and animal life on earth because it protects the surface from dangerous ultraviolet light. However, industrial and domestic chemicals ...
    Free research essays on topics related to: ozone molecules, ultraviolet radiation, ozone layer, ozone depletion, ultraviolet rays
  • Ozone Depletion Ozone Layer
    1,352 words
    The Earth? s ozone layer shields all life on the planet from the sun? s 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 Earth? s ozone 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 ot...
    Free research essays on topics related to: ozone depleting, ozone molecules, ozone depletion, ozone layer, ultraviolet radiation
  • Forms Of Life Ozone Depletion
    457 words
    The Ozone Layer Ozone layer depletion slows There is good news about the ozone layer above us. The good news about the ozone layer is not always frequent. On International Ozone Day, the report came in that the ozone levels have decreased above Montreal and other residents of southern Canada. The ozone levels have decreased to a normal level. Normal meaning the levels have dropped from the levels reported in 1980. The ozone layer is an important and fragile part of earth. If we did not have an o...
    Free research essays on topics related to: ozone levels, ozone layer, ultraviolet light, forms of life, ozone depletion
  • Ozone Layer Ultraviolet Radiation
    1,027 words
    Ozone is an important molecule in maintaining the homeostasis in the environment. Ozone, the molecule O 3, makes a layer in the stratosphere, situated 10 to 15 kilometers from the earths surface. The dioxide molecule, O 2 and Oxygen atom O, collide with each other result in the formation of Ozone, O 3. In this reaction, the molecule O 3 contains an excess of energy. Once the molecule is formed, it is not stable enough to last long. The energy-rich O 3 molecules discards the excess energy by coll...
    Free research essays on topics related to: uv b, ozone layer, skin cancer, ultraviolet radiation, earths surface
  • Carbon Dioxide Ozone Layer
    1,519 words
    In environmental science the green house effect is a common term for the role water vapor; carbon dioxide and ozone play in keeping the earths surface warmer than it would normally be. The atmosphere is primarily transparent to infrared radiation from the sun, which is mostly absorbed by the earths surface. The earth being much cooler than the sun, remits radiation most strongly at infrared wavelengths. Water vapor, carbon dioxide and ozone then absorb much of this radiation and remit a large pr...
    Free research essays on topics related to: stratospheric ozone, carbon dioxide, earths surface, ozone molecules, ozone layer
  • Ultraviolet Radiation Carbon Dioxide
    1,154 words
    Horace and the Atmosphere Hey there! I don? t know who? s reading this, but have I got a story to tell you! My name is Horace and I? m a 5 billion-year-old rock. Now wait a minute! I know what you? re thinking, ? What a boring life. What does a rock know about anything? ? But don? t walk away yet. An old rock can know more than you think and I happen to have a pretty cool story to tell you. It? s all about the atmosphere. You know, that big mass of gases and air pressure extending over 100 kilom...
    Free research essays on topics related to: carbon dioxide, atmosphere, ultraviolet radiation, ozone layer, carbon monoxide

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