Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent?
Options: a condition in the international market where nations do not impose customs duty or other taxes on import of goods, market where the price of a commodity is determined by free play of the forces of supply and demand, ports that are exempted from payment of customs duty on articles of commerce, primarily to encourage tourism, None of the above
Which of the following factors are responsible for the rapid growth of sugar production in south India as compared to north India?Higher per acre field of sugarcaneHigher sucrose content of sugarcaneLower labour costLonger crushing period
Options: I and II, I, II and III, I, III and IV, I, II and IV