What factors might cause the carrying capacity of a population to change

Which of these best describes the function of a "super pac"? a)create bi-partisan legislation that can become law b)organization meant to reign-in spending of political candidates during election cycles c)promote the interests of supreme court justices without breaking specific tampering laws d)raise funds through donations from corporations or individuals to support or oppose specific political candidates

The social contact theory states that

Identify whether the following features belong to the early dynastic period or the old kingdom.