Which of the following are exotic breeds of cattle?

The oil-yielding plant among the following is:

$(a)$ What is composite fish culture system?
$(b)$ Mention one merit and one demerit of this system.

Name two protein-containing rabi crops.

Two friends,Girish and Neeraj,were discussing Newton's third law. They were perplexed about how action and reaction are equal and opposite. They could not think of an experiment by which they could ascertain this fact. Pushkar,who was their friend,told them that he would set up an experiment to prove this to them. By performing an experiment,Pushkar demonstrated the law.
$(a)$ Can you think of an experiment by which you can demonstrate this law?
$(b)$ What values do you think Pushkar has?

$(a)$ Name one indigenous and one exotic breed of domestic fowl.
$(b)$ What are the two main products obtained from raising domestic fowl?
$(c)$ Name two vitamins that should be included in high amount in poultry feed.