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Causes
1. The parents of these students do not place much importance on education. At the least provocation, they take the children out of school. Girl students are especially vulnerable. For them the household chores - carrying water, looking after siblings and marriage are considered more important. 2...
Causes of Pollution
Causes of Pollution - The ultimate cause of pollution is human activity itself. Pollution is a human contribution to nature. Science has evolved technologies and technologies have helped the human welfare. In the process, the pollution has been a part of technology and therefore..
Causes of Air Pollution
Burning the petroleum products to run automotive transport vehicles is the main cause of air pollution. The main pollutants like SO 2 , CO, CO 2 are main gases being released into air due to transport vehicle..
Causes of Water Pollution
Unlike air pollution, water pollution has to be studied in the spatial perspective to understand the causes. Hence, causes of water pollution can be classified as Main source of pollution - where in pure water is mixed with pollutant for first time Secondary source of ..
Infectious or disease causing agents
These are the various pathogenic micro-organisms which may enter the water along with sewage or other wastes. These microbes, mainly bacteria and viruses, can cause various diseases such as cholera, typhoid, dysentery, gastroenteritis, polio, hepatitis etc. in the water supply ..
Pollution caused due to combustion of petroleum products
Petroleum is a mixture of hydrocarbons. On combustion, it produces mainly carbon dioxide and water vapour. However, on incomplete combustion, they produce carbon monoxide, unburnt hydrocarbons etc. They also produce oxides of nitrogen. Petrol is an important fraction of petroleum used in..
Conclusion
. Vehicular trffic releasing carbon monoxide, sulphur dioxide, nitrogen dioxide has caused large scale air pollution in cities. Pollution of air is the major cause human health problems such as respiratory problems, lung / throat, cancer etc. Pollution of water is also the ..
Question 3
Question: Who were the 'bandits'? Give an account of the narrator's life before their arrival. Answer: There was civil war in Mozambique. The bandits were the revolutionaries or the outlaws. The narrator led a normal, happy life before the arrival of the ban..
U.S. HISTORY
Era 1: Three Worlds Meet (Beginnings to 1620) Era 2: Colonization and Settlement (1585-1763) Era 3: Revolution and the New Nation (1754-1820s) Era 4: Expansion and Reform (1801-1861) Era 5: Civil War and Reconstruction (1850-1877) Era 6: The Development of the Industrial ..
U.S. HISTORY
Era 1: Three Worlds Meet (Beginnings to 1620) Era 2: Colonization and Settlement (1585-1763) Era 3: Revolution and the New Nation (1754-1820s) Era 4: Expansion and Reform (1801-1861) Era 5: Civil War and Reconstruction (1850-1877) Era 6: The Development of the Industrial ..
Result
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