Animal husbandry is the scientific management of
$(i)$ animal breeding
$(ii)$ culture of animals
$(iii)$ animal livestock
$(iv)$ rearing of animals

What do you mean by:
$(a)$ Blue revolution?
$(b)$ Yellow revolution?

The housing, nutritional and environmental requirements of broilers are somewhat different from those of egg layers.

State how barseem,oats,or sudan grass are used by farmers.

During class,Ravi's teacher was teaching about Thomson's model of an atom,stating that an atom is electrically neutral,i.e.,it contains equal positive and negative charges,and that an atom consists of a sphere of positive charge in which electrons are embedded like plums in a pudding. Ravi wondered how his teacher related Thomson's model of an atom to a plum pudding,and he imagined that just as dry fruits are embedded in a Christmas pudding,electrons are embedded in a sphere of positive charge.
$(a)$ According to you,what kind of qualities does Ravi possess?
$(b)$ What are the limitations of Thomson's model?

List out some useful traits in improved crops.