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

Distinguish between:
$(i)$ Inland fishery and marine fishery.
$(ii)$ Culture fishery and capture fishery.
$(iii)$ Apiculture and aquaculture.

Discuss the role of hybridisation in crop improvement.

Nakul was shooting his arrows towards a target. Every time the arrow fell short of the target. This annoyed him. His brother, Arjun, came to his rescue. He showed his brother the right way to shoot an arrow. When Nakul tried again, he found that the arrows started hitting the target.
$(a)$ What do you think Arjun might have told Nakul?
$(b)$ What are the values imbibed by Arjun?

On a voyage in their yacht,John and his father came across an iceberg. John advised his father to keep away from the iceberg. His father said that it is just a small piece of ice jutting out of the sea and there is nothing to bother. John told his father that icebergs are dangerous and narrated the story of the ship $Titanic$,which was sunk by an iceberg. John explained to his father why the iceberg was dangerous. This convinced his father,and they steered clear of the iceberg.
$(a)$ Why are icebergs in the sea dangerous?
$(b)$ What values are possessed by John and his father?

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?