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’s stratosphere (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 of polar ozone
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Figure 2: Sample Essay The Ozone Layer (1) PARAGRAPH 1 (DEVELOPED FROM THE CRITICAL QUESTION AND KEY TERMS) Problems with ozone can teach us about human effects on our environment. The ozone layer is an invisible layer of gas that shields us from UV radiation. UV radiation is ultraviolet radiation‚ or rays of the sun that can harm living things. One problem today is that the protective ozone layer around the earth is being destroyed (PROBLEM). (2) PARAGRAPHS 2‚ 3 & 4 (DEVELOPED FROM
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Effect of CCl3F on Canada’s Ozone Layer Data Analysis and Interpretation 1. It took 25 yrs for CCl3F to enter the stratosphere (1930 to 1955). 2. The ozone layer above Canada began to decline in 1975. 3. Once the production of CCl3F was drastically reduced‚ it took 20 years for the CCl3F levels to decrease in the stratosphere. Conclude and Communicate 4. CFCs (Chlorofluorocarbons) are inorganic man-made chemicals that have been in production for more than 50 years in Canada. They were
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Hole in the Ozone is a documentary film that educates its audience the relationship of ozone and chlorofluorocarbons (CFCs) and its effects to our atmosphere. Hole in the Ozone also known as Ozone Depletion or Ozone Thinning had been an issue since the 70s and 80s. Even until now‚ this has become one of our major environmental issues. It is surprising to know that the ozone performs a major part in protecting us from dangerous radiation that the sun emits to our planet‚ even though it is also part
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Atmospheric Phenomenon / Ozone Depletion: Effects to Natural Resources A Research Paper Presented to the class of Ms.Mary Cor C. De Chavez Bayanan National High School In Partial Fulfillment On the Requirements for the subject English IV By: Donalyn Manalo IV-LAUREL Topic: Atmospheric Phenomenon / Ozone Depletion: Effects to Natural Resources Thesis or Main Idea: Ozone Depletion is an atmospheric phenomenon which destroys the stratospheric ozone layer that shields the earth
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Ozone Depletion: An Introduction Planet Earth has its own natural sunscreen that shields us from the sun’s damaging ultraviolet radiation. It’s called the ozone layer: a fragile band of gases beginning 15 kilometres above our planet‚ and reaching up to the 40-kilometre level. Human activities have caused a substantial thinning of this protective covering — not only over the North and South Poles‚ but right over our heads. Stopping ozone layer depletion is one of the major challenges facing the
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Ozone As A Disinfectant Joey Finnegan Section 01 October 3‚ 2010 Ozone is a highly reactive gas composed of three oxygen atoms. Ozone is an unstable gas that can destroy bacteria and viruses. Ozone can have many different effects on humans depending on where it is in the atmosphere‚. Some of these effects can be harmful although some can be good. An excess‚ or high concentration of ozone in an inclosed area can be quite harmful to humans although in moderation and if used properly ozone
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IMPACTS OF OZONE Introduction Ozone is a gas that occurs naturally in our atmosphere. Most of it is concentrated in the ozone layer[->0]‚ a region located in the stratosphere several miles above the surface of the Earth. Although ozone represents only a small fraction of the gas present in the atmosphere‚ it plays a vital role by shielding humans and other life from harmful ultraviolet light from the Sun. Human activities in the last several decades have produced chemicals‚ such as chlorofluorocarbons
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thin layer of gas called atmosphere surrounds the Earth. The atmosphere serves two important purposes: it is a filter for the suns dangerous ultraviolet radiation rays and keeps the heat‚ necessary to maintain life on earth‚ within the stratosphere (Vorlat 361). Ultraviolet light is incredibly dangerous to all the organisms within the Earth ’s ecosystem because it causes skin cancer‚ effects the immune system‚ and harms plant and animal life. For that reason the atmosphere and the ozone layer within
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How does the atmosphere affect conditions on Earth? What is Earth’s atmosphere composed of? How do pressure and density vary with altitude? What are the characteristics of the major layers of the atmosphere? Important Terms atmosphere air pressure barometer troposphere weather stratosphere ozone layer mesosphere thermosphere ionosphere aurora At 8848 meters (29‚030 feet) above sea level‚ Mount Everest is the highest mountain in the world. In 1952 Edmund Hillary‚ a New Zealand
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