Assignment – Ozone Debate The debate over whether or not the ozone is actually depleting or not has been a hot topic for some time. However‚ it becomes a hotter topic when scientists find out it is a lower level then usual. We don’t here much from the debate when it has replenished itself to some amount‚ which it does do during certain seasons. Between the two sides we are to take‚ I am basically right in the middle. I do believe what the NASA website stated about it when it said “the ozone is extremely
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Ozone Depletion Good morning to our lecturer and my fellow friends. Today I want to deliver a speech on title “Ozone Depletion”. Did you know that about 20 kilometres from the earth’s surface there is a thin layer of gas forming just a small fraction of the earth’s atmosphere‚ without which harmful radiation from the sun would destroy all life on this planet? This is the ozone layer‚ which filters out harmful ultraviolet-B rays. Today‚ because of our negligence‚ the ozone layer is depleting.
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Ozone depletion Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth’sstratosphere (the ozone layer)‚ and a much larger springtime decrease in stratospheric ozone over Earth’s polar regions. The latter phenomenon is referred to as the ozone hole. In addition to these well-known stratospheric phenomena‚ there are also springtime polar tropospheric ozone depletion events. The details
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ISSN: 2010-0264 Ozone Layer Depletion and Its Effects: A Review Sivasakthivel.T and K.K.Siva Kumar Reddy Abstract - There are many situations where human activities have significant effects on the environment. Ozone layer damage is one of them. The objective of this paper is to review the origin‚ causes‚ mechanisms and bio effects of ozone layer depletion as well as the protective measures of this vanishing layer. The chlorofluorocarbon and the halons are potent ozone depletors. One of
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ACID RAIN name here Engineering 303i Professor h May 3‚ 2004 BIBLIOGRAPHY Penguin Publishing House‚ 1987 ‚ Pearce Fred Acid Rain. What is it and what is it doing to us? New York Publishers‚ 1989‚ William Stone Acid Rain. Fiend or Foe? Lucent books‚ Inc. 1990‚ Steward Gail Acid Rain. Acid Rain Acid rain is a great problem in our world. It causes fish and plants to die because earth’s rainwaters are contaminated. It also causes harm to people as well‚ because
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Scientific Article: The Ozone Layer The Ozone layer is located in the Earth’s upper atmosphere. It acts as a barrier and absorbs majority of UV radiation before it hits Earth’s surface. Ozone is made up of three oxygen atoms that are naturally occurring molecules. The depletion of the ozone has become a worldwide issue and is caused by the release of CFCs into the atmosphere. CFCs release chlorine atoms which break down ozone molecules. The depletion of the ozone layer threatens to leave life on
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Essay ozone depletion is a serious problem presently 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 O3 gas. The ozone layer is necessary to both plant and animal life on earth because it protects the surface from dangerous ultraviolet light. However‚ manufacturing and household chemicals
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continent-size hole in Earth ’s ozone layer keeps getting bigger and bigger. Each year since the late 1970s‚ much of the protective layer of stratospheric ozone above Antarctica has disappeared during September‚ creating what is popularly known as the ozone hole. The Antarctic hole now measures about 9 million square miles‚ nearly the size of North America. Less dramatic‚ still significant‚ depletion of ozone levels has been recorded around the globe. With less ozone in the atmosphere‚ more ultraviolet
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The upper layer of the atmosphere surrounded by ozone (15 to 30 Kms) is known as ozonosphere. Ozone layer is a protective stratospheric layer‚ also known as ozone umbrella. Ozone concentration differs by about 10 ppm in stratosphere compared to 0.05 ppm in troposphere. It acts as a protective shield for the man‚ animals and plants by filtering out the lethal ultraviolet rays from reaching the earth’s surface. If the ozone layer is not there‚ the harmful ultraviolet rays will reach to the
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Most people do not realize that atmospheric pollution (also known as air pollution) is a very serious global problem. There are a great number of air pollutants that are basically caused from natural resources. Most of the pollutants are mankind. There are seven air pollutants that are at greater risk to our environment‚ which are the following: particulate matter (made up of acids‚ organic chemicals‚ metals‚ soils‚ and dust particles)‚ nitrogen oxides (made by highly reactive gasses that contain
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