Try to check google or something
That they were trying to steal there land
In the United State the economy was in the great depression in the 30's. There was a scare and many investors withdrew any investments. Now, we are in great debt to other countries.
public opinion is formed through a number of actions called "political socialization"
im sorry i do not know all five. heres two:
general agreement (it is an opinion behind which there is a general agreement or a consensus)
general welfare (public opinion is always governed by the idea of promotion of general public welfare)
I would say the land/crops/oil.