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SAI International School
                                            Subject- Biology, Class-VIII
                                    Topic- Microorganisms: Friend and Foe
                      Subtopic- Friendly Microorganisms 2- Cleaning Environment
                                                       Module- 13

                                                 E- Learning Material


               Friendly microorganisms-https://www.youtube.com/watch?v=exycPnQDOq8
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