Which department handles relations with other nations?

Which best describes the purpose of the south carolina exposition and protest, which was written by john c. calhoun? a) to explain why the south was nullifying the tariff of 1828 b) to describe the ways the tariff of 1828 would southerners c) to persuade northern states to rebel against the federal government d) to ask england for if the south decided to secede from the union

Ais a group of people living and working under a set of rules and traditions.

'nepal have varied vegetation as climate and landforms'. justify the statement