collect major river system of in india on the basis of pollution level .present the data in different by using different types of statistical tools
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https://www.scribd.com/doc/76283831
www.cpcb.nic.in/upload/Latest/Latest_66_FinalPollutedStretches.pdf
www.indiastat.com/environmentandpollution/11/stats.aspx
www.cpcb.nic.in/upload/Latest/Latest_66_FinalPollutedStretches.pdf
www.indiastat.com/environmentandpollution/11/stats.aspx
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