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Arrange these statements in correct sequence of preparation of green manure.
(a) Green plants are decomposed in soil.
(b) Green plants are cultivated for preparing manure or crop plant parts
are used.
(c) Plants are ploughed and mixed into the soil.
(d) After decomposition it becomes green manure.
 
a.

b.

c.

d.
Answer variants:
Green plants are cultivated for preparing manure or crop plant parts are used
Plants are ploughed and mixed into the soil
Green plants are decomposed in soil
After decomposition it becomes green manure.