with gas emitted from factories‚ cars‚ lorries and other vehicles. Te use of CFCs (chlorofluorocarbon) in many our daily equipments such as refrigerators and spray aerosols cause the depletion of the ozone layer that functions to protect us from the harmful effect of the sun and cosmic rays. The depletion of the ozone layer will increase the exposure of the dangerous cosmic rays to human and thus will increase the incidence of skin cancer. What can we do or at least minimize these problems? Responsible
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equipment and other large machineries‚ especially if it’s in a large population area‚ as our actions on the construction site could affect the local community. Ozone quality: Ozone is a gas that shields the earth’s and occurs naturally in the earth’s upper atmosphere. It protects the earth from harmful ultraviolet radiation. Without the Ozone layer there would be no life on earth! Chemicals such as
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knowlidge ‚ we are using more and more natural and sinthetical materials. Often we want only to make our life easier‚ but we don’t think of the following consequence. Also we can find one fridge in a flat‚ but the result of these can be the ozone layer depletion and teh increas of the average temperature int he whole world. Our loving for the comfortable life causes pollution and destroyes our health. Int he city the children can’t play in the parks because they are very dirty. Some of these
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conditioner while I am home. However‚ I reduced the times I open the air conditioner because from this subject I wonder that it will release Chlorofluorocarbons (CFCs). Man–made CFCs are the main cause of ozone depletion in the stratosphere and it will cause the development of skin cancer since ozone concentration of stratosphere reduced. Hence‚ I try to not open air conditioner and use fan to substitute. On the whole‚ I learned a
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later used in other applications‚ such as propellants in aerosol spray cans and asthma inhalers. The Society of Chemical Industry awarded Midgley the Perkin Medal in 1937 for this work. However‚ Midgley’s discovery resulted in damage to the earth’s Ozone layer. Two‚ Midgely discovered the effectiveness of tetraethyl lead as an antiknock additive for gasoline. On October 30‚ 1924‚ Midgley participated in a press conference to demonstrate the safety of TEL. In this demonstration‚ he poured TEL over
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chemical‚ physical (particulate matter)‚ or biological agent that modifies the natural characteristics of the atmosphere. he atmosphere is a complex‚ dynamic natural gaseous system that is essential to support life on planet earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the earth’s ecosystems. Worldwide air pollution is responsible for large numbers of deaths and cases of respiratory disease.
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scientist can develop a better catalytic converter in the cars exhaust system to filter out harmful gasses. Chemistry led to the discovery of chlorofluorocarbons (CFC). Chemist further investigated and found that CFC is the main cause for the depletion of the ozone layer. The discovery of this organic compound led to the ban of all items containing CFC. Chemistry also makes our everyday lives easier. Chemistry was used to create the first transatlantic telegraph cable in 1858. This Invention made
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to living in natural whether and climatic conditions. 4) Stop using deodorant and aerosol sprays. Air conditioners‚ refrigerators and aerosol sprays use CFC or cholo-fluro-carbons. When CFC leaks into the atmosphere‚ it does deplete the ozone in the air. The Ozone layer is what protects us for harmful radiations of the sun. 5) Builders and architects should use less glass on outer walls of buildings in their designs. For example- a tall building with a glass façade from top to bottom will heat up
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ISEN 669 Assignment 1 Questions from Chapter 1 40 Points Name: UMA M PANNEERSELVAM Date: 01/29/2012 Bring to class Monday night for discussion and to hand in. DL students: Formulate your responses and then e-mail to Shirish (TA) on or before Monday night‚ January 30‚ 2012. TA: Shirish Lamichhane TA E-mail: slamic2@neo.tamu.edu Respond to the following questions from chapter 1 on pp12-13. Use this document to respond to the following question using MS Word. Type
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Canticle For Leibowitz: Walter Miller Walter Miller‚ in the novel A Canticle For Leibowitz‚ mocks the way we are as humans‚ particularly in those ways that lead to regressive thinking. The novel pokes fun at the attention to impractical details‚ such as to the spent copying the Leibowitz blueprints. Miller also mocks humans by describing the inordinate amount of attention and energy given to a spiritual being such as Leibowitz‚ as today’s society worships God. Finally‚ the most absurd way
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