i want to make a 20 page project work based on acid rain . i want information regarding tht?
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Acid rain occurs when sulfur dioxide and nitrogen oxides are emitted into the atmosphere, undergo chemical transformations and are absorbed by water droplets in clouds. The droplets then fall to earth as rain, snow, or sleet. This can increase the acidity of the soil, and affect the chemical balance of lakes and streams. [1]. Acid rain is sometimes used more generally to include all forms of acid deposition - both wet deposition, where acidic gases and particles are removed by rain or other precipitation, and dry deposition removal of gases and particles to the Earth's surface in the absence of precipitation.[2]\n\nAcid rain is defined as any type of precipitation with a pH that is unusually low (Brimblecombe, 1996). Dissolved carbon dioxide dissociates to form weak carbonic acid giving a pH of approximately 5.6 at typical atmospheric concentrations of CO2 (Seinfeld and Pandis, 1998). Therefore a pH of <5.6 has sometimes been used as a definition of acid rain [3]. However, natural sources of acidity mean that in remote areas rain has a pH which is between 4.5 and 5.6 with an average value of 5.0 and so rain with a pH <5 is a more appropriate definition [4].\n\nAcid rain accelerates weathering in carbonate rocks and accelerates building weathering. It also contributes to acidic rivers, streams, and damage to trees at high elevation. Efforts to combat this phenomenon are ongoing.\nEmissions of chemicals leading to acidification\n \nVolcanic injection.The most important gas which leads to acidification is sulfur dioxide. Emissions of nitrogen oxides which are oxidised to form Nitric acid are of increasing importance due to stricter controls on emissions of sulfur containing compounds. 70 Tg(S) per year in the form of SO2 comes from fossil fuel combustion and industry, 2.8 Tg(S) from wildfires, and 7-8 Tg(S) per year from volcanoes. (Berresheim et al, 1995).\n\nNatural emissions\nThe principal natural phenomena that contribute acid-producing gases to the atmosphere are emissions from volcanoes and those from biological processes that occur on the land, in wetlands, and in the oceans. The major biological source of sulfur containing compounds is Dimethyl sulfide.\n\nThe effects of acidic deposits have been detected in glacial ice thousands of years old in remote parts of the globe.\n\nHuman emissions\nThe principal cause of acid rain is sulfur and nitrogen compounds from human sources, such as electricity generation and motor vehicles. The gases can be carried hundreds of miles in the atmosphere before they are converted to acids and deposited.\n\n\nGas phase chemistry\nIn the gas phase sulfur dioxide is oxidised by reaction with the hydroxyl radical via a termolecular reaction:\n\nSO2 + OH· + M→ HOSO2· + M \nwhich is followed by:\n\nHOSO2· + O2 → HO2· + SO3 \nIn the presence of water sulfur trioxide is converted rapidly to sulfuric acid:\n\nSO3 + H2O + M → H2SO4 + M \nNitric acid is formed by the reaction of OH with Nitrogen dioxide:\n\nNO2 + OH· + M → HNO3 + M \nFor more information see Seinfeld and Pandis (1998).\nChemistry in cloud droplets\nWhen clouds are present the loss rate of SO2 is faster than can be explained by gas phase chemistry alone. This is due to reactions in the liquid water droplets\n\nHydrolysis \nSulfur dioxide dissolves in water and then, like carbon dioxide, hydrolyses in a series of equilibrium reactions:\n\nSO2 (g)+ H2O ⇌ SO2·H2O \nSO2·H2O ⇌ H++HSO3- \nHSO3- ⇌ H++SO32- \nOxidation \nThere are a large number of aqueous reactions of sulfur which oxidise it from S(IV) to S(VI) leading to the formation of sulfuric acid. The most important oxidation reactions are with ozone, hydrogen peroxide and oxygen (reactions with oxygen are catalysed by Iron and Manganese in the cloud droplets).\n\nFor more information see Seinfeld and Pandis (1998).\n\n\nAerosol formation\nIn the gas phase sulfuric and nitric can condense on existing aerosols or nucleate to form new aerosols. The nucleatio
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You can search on Yahoo or Google search Engine.\n\nAlso if you decide which topic you want to write about, you can search about it on Encylopedias like wikipedia or encarta or britannica or anyother..\n\nAlso there are many School/University sites where you can get ideas about. \n\nNOTE: If you are an Indian - DPS has some good sites where you can get past papers and project stuff.\n\nBest of luck on your project ;)
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Just google pollution and recylcing.  You can get images for your report that way too.
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Mail me on tap_sung_bong@yahoo.co.uk and I will send you an assignment with it in.
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Describe the project you did, methods and materials, results and conclusions.
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I TOO PREPARED THE SAME PROJECT LAST YEAR. U CAN USE THE BOOK DISASTER MANAGEMENT WHICH IS FOR CLASS 9& 10TH. ORGO TO wikipedia.com, encarta.com ,.i got it from encarta encyclopedia.
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Do you have more information on the project?
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what kind of project?, maybe i could help you, let me know...
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First off.... Find your interests, in order to make the project fun. What interests you? \n\nYou may be a person like me --that doesn't like science, but be creative.\n\nYou could do a topic on disorders:\n\nAsthma,\nAutism Spectrum Disorder- Is Autism genetic?\nADHD -- Is ADHD genetic?\nAnxiety Disorders-- What causes anxiety? \nOr so and so....\n\nThe last science fair project I did was:\n\n"Does music affect your heart rate?" And, of course, the answer was yes. It was a lot of fun-- I hatre science, but I made it fun.. hehe!\n\nHere are some topics:\n\nSexual Reproduction\nFlowers & Plants\nDisorders; Asthma, Autism, ADHD, Bipolar Disorder, Depression, and other disorders.\nElectricity\nAnimals - if you like animals.\nComputers\nFruit\nGardening\nGuns -- how they work, etc.\nFishing\nFarming\nObesity- why is uncommon/common in US and other countries--why is it un/common in other countries? etc.\nExercise-does it affect heart rate? etc.\nDrugs--does it affect a person? If so/if not, what way/s? \nCooking,\nSkin (human skin, how it's formed, etc),\nSleep--scientific--why do teens sleep more/less than adults?,\nSoaps--which soaps work better? And why?\nWhich fertilizer makes plants grow healthier?\nWhat baby products are the best? And why?\nHealthy foods,\nHow does bike riding enhance your muscle strength?,\n\nHere are some of my ideas, as well as this website. Hopefully, it's helpful.\n\nGood luck!\n\nMichelle
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Try looking up the pH of the various substances.  Your school librarian should be able to help you with more specifics on searching, particularly as several good print resources exist on this topic (and print resources are MUCH better than "googling" because they've typically been checked for accuracy wheras most web content has not).  I've included a couple sites to get you started, but you should find nonweb resources to verify the information.  \n\nIt is interesting to note in a project like the one you're doing that the digestive system works by corrosive action of strong acid (primarily concentrated hydrochloric acid), so almost anything you consume is going to be higher in pH than your digestive system.  Also, corrosivity is only one measure of chemical action (and danger)!  \n\nHave fun and good luck with your project.
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How about the red fountain experiment with acids and litmus solutions? mail me at pr4kane@yahoo.com for furhter details on it. u can try electroplating,bleaching by chlorine/so2,the brown ring test with sulphuric acid etc.
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Here is a Malaysian site that will get you started.\n\nhttp://www.kjc.gov.my/english/education/climate/climate01.html\n\nREMEMBER - use the information that is available on the websites as a starting point for your project. \n\nDon't resort to wholesale copying of the content - if you do that the following will happen: \n\n- your own intellectual abilities will not develop to their fullest.\n- even if you win the prize promised to you by your father, you will not gain complete satisfaction, becuase deep down inside you know that you have cheated.\n- you will accumulate bad karma (see the case of poor Kaavya Vishwanathan!!!!!!!!)  \n\nGOOD LUCK with your report.
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http://www.scienceproject.com/
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what project\nplz tell me on oct7lib@yahoo.co.in\ni can help u
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www.google.com --> "Bunyip River"\n\nThe level of detail that you need will depend on what grade you are in.\n\nHint: if you get other people to do your homework then you will flunk.
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Try this link :)\nhttp://www.scienceproject.com/
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mostly acids. do your own homework