Find out the wrong statement from the following:

Arrange these statements in the correct sequence for the preparation of green manure.
$(a)$ Green plants are decomposed in the 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.

How do biotic and abiotic factors in stored grains lead to poor marketability? How can these factors be controlled?

The ration (daily food requirement) for broilers is carbohydrate-rich with adequate minerals.

Sehaj tried to set up a small kitchen garden in his backyard. However,the soil was sandy and unsuitable for growing vegetables. Within seven days,he solved the problem and started planting seedlings.
$(a)$ Why was the soil in Sehaj's backyard unsuitable for growing vegetables?
$(b)$ What could be the solution he found? Mention any two.

An Italian bee variety $A. mellifera$ has been introduced in India for honey production. Write about its merits over other varieties.