Because they believe it's better than the country they are in. They will get better job opportunities they're kids will get a better education. They want a better life than where they came from.
People migrate to the US for a better life. Most flocked to the US to escape persecution and poverty. The US has always been a haven for people desperate for a better life.
Most people migrate from latin America to the U.S to take care of their needs for their family.
So that they would have something to eat. If animals migrate, the people who hunt them must migrate as well.
because they have a bad life
White people are still migrating to the US. It began roughly in the late 1600's.
They drive on highways and interstates just like they would migrate across any state in the US.
Ireland didn't, it is still where it was. Some Irish people did
When people migrate the population that they left becomes smaller. When these people migrate to where they are going to that population becomes larger.
Because of starvation and disease that were killing people and there was barely any jobs
the colinists and the native Americans
its hard for people to migrate because of money
Lack of food (for one) will make people migrate. Also, weather or temperature will make people migrate.