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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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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Speech on: World Environment Day Good morning my dear friends and respected teachers. I hope all of you know today is World Environment Day. So‚ that our school has kept this program. Today I am going to deliver a short speech on World Environment Day. It gives me great pleasure to address you on this World Environment Day 2011. World Environment Day is commemorated worldwide each year under the direction of the United Nations to heighten public awareness of the environment. In recent times‚ the
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WORLD Environment Day is celebrated globally today with activities and events to remind us of our impact on the environment and also the things we can do to improve and protect the environment. Everyone can do something for the environment. For a start‚ we could consider the six steps described below. One‚ respect life and renew our bond with nature. Without respect for nature and its biodiversity‚ there will be no desire to protect them. Developing respect means recognising that all living things
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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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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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World Environment Day (WED) World Environment Day (WED) was established by the UN General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment. Commemorated on 5 June each year‚ WED is one of the principal vehicles through which the United Nations stimulates worldwide awareness of the environment and enhances political attention and action. The agenda for WED is to give a human face to environmental issues; empower people to become active agents of sustainable
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wikipedia.org/wiki/FileUars_ozone_waves.jpg o Enlarge Ozone hole in North America during 1984 (abnormally warm reducing ozone depletion) and 1997 (abnormally cold resulting in increased seasonal depletion). Source NASA HYPERLINK http//en.wikipedia.org/wiki/Ozone_depletion l cite_note-13 14 The Antarctic ozone hole is an area of the Antarctic stratosphere in which the recent ozone levels have dropped to as low as 33 of their pre-1975 values. The ozone hole occurs during the Antarctic spring‚ from September
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Annexure – ‘G’ Syllabus Social Science (087) Class IX SA-II (2012-13) Time : 3 Hours UNIT 1. India and the Contemporary World – I 2. India – Land and the People 3. Democratic Politics I 4. Understanding Economic Development – I 5. Disaster Management – (Through Project & Assignments). TOTAL Marks : 90 TERM 2 23 23 22 22 90 The Question Paper will include value based question(s) To the extent of 3-5 marks. The Problem Solving Assessment will be conducted for all students of class IX in
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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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