Americans watched their televisions in amazement and heard neil armstrong’s words as he took his historic "giant leap for mankind."
which noun is the antecedent of their in the sentence?

words

neil armstrong’s

televisions

americans

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

Countries that are neither core nations nor peripheral nations

What would you call a political system that is only meant to last for a short time