Two of the most common problems that many European colonists faced were 1) a lack of food due mostly to improper knowledge of farming, and 2) hostile native populations.
3 4 5 6 are all correct because you said so
Abandoning the city to move farther inland
In return for the money, the United States got Texas, California, New Mexico, and large areas of Arizona and Nevada. This was great for them because it worked well with the manifest destiny idea and it enabled them to get to the western coast.
The answer is the first wave of immigration of North
Americans. The first part of a wave of immigration has occurred in the
nineteenth century which falls on the year 1880’s up until the 1920’s. The
first wave occurred when the irish and germans have dominated the north
americans.