Which state is the largest producer of cotton in India?

Consider the following statements:
$I$. Breeding of animals is very important for animal husbandry.
$II$. Both the male and female animals selected for breeding should be of superior quality.
$III$. The word 'husbandry' means the management of domestic affairs.
$IV$. In our country,poultry mainly means chickens,domesticated for eggs.
$V$. Cows and buffaloes generally give more milk than goats and sheep.
$VI$. The yellow colour of buffalo milk is due to carotene.
Which of the statements given above are true and which are false?
$I \; II \; III \; IV \; V \; VI$

$(a)$ Mutations are beneficial for plant breeding. Taking an example,justify the statement.
$(b)$ Discuss briefly the technology that made us self-sufficient in food production.

$A$: Barley,sorghum,and millet are smother crops.
$R$: They favor the growth of some common weeds.

Which are greenhouse crops?

In an experiment,freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.
The graph indicates: