The movement of people from one area to another is called Migration. People migrate for many different reasons. There may be something that forces people to leave an area, while there may also be something that attracts a person to an area. These are called Push and Pull factors. There are also circumstances when a person would like to migrate but can’t for some reason, this is known as a barrier.
Examples of Push factors are– war and unrest, a cold climate, lack of jobs etc.
Examples of Pull factors are– better services, a lively social life, good jobs etc
Examples of Barriers are– fear of the unknown, money, immigration laws etc.