Answer:Migration is the movement of people from one permanent home to another. This movement changes the population of a place. International migration is the movement from one country to another.

People who leave their country are said to emigrate. People who move into another country are called immigrants. The movement of people into a country is known as immigration.

Every year some people leave the UK and move abroad. At the same time some people will move into the UK. Immigrants add to the total population and emigrants are subtracted from the total.

Sometimes people just move from one region to another within the same country. In many developing countries, large numbers of people have moved from the countryside to the cities in recent years. This is called rural to urban migration.

Why do people migrate?

Sometimes people have a choice about whether they move, but sometimes they are forced to move. The reasons people leave a place are called the push factors. The reasons people are attracted to new places to live are called the pull factors.

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