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the study of living irganisms for human welfare is called

the study of living irganisms for
human welfare is called
 

Grade:12th pass

1 Answers

snehal pawar
14 Points
4 years ago
for 1500 earthworms in a container of the size 1m × 1m ×0.5m how much organic matter is required
a)30-40kg.   b)40-50 kg 
c)3-4 kg        d)200-300 kg

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