Poultry fowl are susceptible to the following pathogens:

After combing his hair,Sameer kept the comb on the table where some pieces of paper were lying. He observed that the plastic comb attracted small pieces of paper. He was surprised to see this and asked his teacher about it. His teacher explained to Sameer that matter contains charged particles and that an electrically charged object can attract an uncharged object. Specifically,upon rubbing with dry hair,a comb acquires an electric charge,which then attracts the pieces of paper.
$(a)$ Give any other practical application of this.
$(b)$ What kind of qualities are shown by Sameer?

Poultry farming is undertaken to raise the following:
$(i)$ Egg production
$(ii)$ Feather production
$(iii)$ Chicken meat
$(iv)$ Milk production

Paras visited a poultry farm with his younger brother,who was perturbed to see that the caretakers were feeding them with grains left in the harvested field which humans cannot consume. Paras explained to him that it would not harm them.
$(i)$ List the two major purposes of poultry farming.
$(ii)$ Name an indigenous and an exotic poultry breed.
$(iii)$ Why was Paras' brother perturbed?

List out some useful traits in improved crops.

Sameer once went to his granny's home with his family and he saw his granny serving water from an earthen pot and was surprised to see that and asked granny why she has kept that earthen pot for storing water. His granny then answered him that it keeps the water cool during summers,he then smiled and thanked her.
$(a)$ According to you,how does water kept in an earthen pot become cool during summers?
$(b)$ What kind of qualities are shown by Sameer?