Biogradable wastes can usually be converted into useful substances with the help of:

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Q: 76 (SSC/NA)
Biogradable wastes can usually be converted into useful substances with the help of:
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question_subject: 

Science

question_exam: 

SSC

stats: 

0,20,2,1,0,1,20

keywords: 

{'biogradable wastes': [1, 0, 0, 0], 'useful substances': [2, 0, 0, 0], 'active substances': [1, 0, 0, 0], 'bacteria': [4, 1, 2, 3], 'nuclear proteins': [2, 0, 0, 0]}