Why don't we have a clear picture of Indus valley civilization

Which option best summarizes what is expected of citizens in a dictator ship

Aprovision of the general agreement on tariffs and trade treaty (gatt)increased taxes on services between the us, mexico, and canada.reduced international tariffs on industrial goods by forty percent.increased us tariffs on agricultural products by forty percent.ended taxes on goods traded by the us, mexico, and canada.

Known officially as a parliamentary democracy, but sovereign to the united kingdom, which canadian official is the head of canadian government? a) the president of canada b) the prime minister of canada c) the governor general of canada eliminate d) the royal canadian mounted police