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CBSE Class 10 Answered

Please help me to do project on the topic 'Fresh water pollution' in about 2500 words.with suitable pictures
note 
  • there should be tables on samples of water during all seasons and then write the BOD and ph value of that samples.
  • places where fresh water is found in minimum amd maximum 
  • information about fresh water pollution, effects and causes
plz do this project carefully as this contain 85 marks.
send as early as possible.
thank you............
Asked by patratitas | 22 Sep, 2014, 09:32: PM
answered-by-expert Expert Answer
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Answered by Prachi Sawant | 23 Sep, 2014, 09:09: AM
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