How can we identify the presence of pollutants in water
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presence of pollutant in water means nowdays
water become very pollutant due to domestic waste industries factory sewage and many other waste like insticides pesticides which
drawn by rain water into river and it also born
many like thypoid fever . dysentery .diarrohea etc
water become very pollutant due to domestic waste industries factory sewage and many other waste like insticides pesticides which
drawn by rain water into river and it also born
many like thypoid fever . dysentery .diarrohea etc
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