pls give me the suggestion for the chapter 9 and 10 of bio cl 12>>>>reply soooonnn.....

Go through NCERT Completely...
No need of extra book particularly for this Chapter...Go through Table 9.1 and Table 9.2...
In chapter( Microbes in Human Welfare) you should Read the topic ( Microbes in Sewage Treatment ) line by line carefully...
No Need Of Extra Topic particularly For this Chapter....(I am talking Only For NEET)

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