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Azotobacter, Clostridium, Aerobacter, Methanobacterium are free living bacteria which fix atmospheric nitrogen. The leaves of Azolla (an aquatic pteridophyte) have large number

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Page 1: Azotobacter, Clostridium, Aerobacter, Methanobacterium are free living bacteria which fix atmospheric nitrogen. The leaves of Azolla (an aquatic pteridophyte) have large number
Page 2: Azotobacter, Clostridium, Aerobacter, Methanobacterium are free living bacteria which fix atmospheric nitrogen. The leaves of Azolla (an aquatic pteridophyte) have large number
Page 3: Azotobacter, Clostridium, Aerobacter, Methanobacterium are free living bacteria which fix atmospheric nitrogen. The leaves of Azolla (an aquatic pteridophyte) have large number
Page 4: Azotobacter, Clostridium, Aerobacter, Methanobacterium are free living bacteria which fix atmospheric nitrogen. The leaves of Azolla (an aquatic pteridophyte) have large number
Page 5: Azotobacter, Clostridium, Aerobacter, Methanobacterium are free living bacteria which fix atmospheric nitrogen. The leaves of Azolla (an aquatic pteridophyte) have large number