The senate must confirm presidential appointees to office. this process allows the senate to
a: accept or reject the president's yearly budget proposals
b: hear impeachment charges brought by the house
c: "check" the executive and judicial branches
d: propose amendments to the constitution

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

Why are the majority of the world's economies mixed? what may happen to the "pure" types of economies (traditional, socialist/command, market capitalist) when they incorporate elements from other economic models?

Does increased security engender feelings of increased safety or does it increase the fears that people have?