What issue is the world facing in regards of human population?

In this theory for forming a government, violence has made people follow a leader. evolution theory force theory divine right theory social contract theory

This was an order issued during the civil war by president lincoln ending slavery in the confederate states

Which of the following are details about the compromise of 1877? election results in a couple of states were in dispute and too close to call. samuel tilden would be given the win in exchange for the removal of federal troops. the presidential election was close between rutherford hayes and ulysses grant. it was agreed troops would leave the south in exchange for a hayes victory.