Fertility of soil can be improved by : [IAS 1989] – McqOptions

MCQOPTIONS

1.	Fertility of soil can be improved by : [IAS 1989]
A.	adding living earthworms
B.	adding dead earthworms
C.	removing dead earthworms
D.	removing living earthworms and adding dead earthworms
Answer» B. adding dead earthworms

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