The three general causes of migration are:
environmental factors
the dorians,lonians and the aeolians
Depends on what you mean... but I'll try.There is migration, chain migration, forced migration, voluntary migration, net-in migration, net-out migration, immigration, emmigration, countermigration.These are Human Geographic terms by the way. That makes about 9 types of migration.
Sumer, Akkad and Babylonia were the three general areas of ancient Mesopotamia.
Farming methods improved, Enclosure increases Output but causes migration, and population multiplies.
Three causes are the disagreement of political actions by Porfirio Diaz, exploitation of the working class, and change in land reform.
Three causes of human migration are economic opportunities, political instability, and environmental factors. Three effects of human migration include cultural diversity, demographic changes, and strain on resources in receiving countries.
Three causes of Cultural change are, migration, trade, and warfare.
birth death migration/emigration
Before we get into the causes of piercing migration and rejection, here
what are the causes of the migration of the navajos
Civil wars disease famine
...
The three forms of internal migration are rural to urban migration, urban to rural migration, and rural to rural migration. Rural to urban migration involves movement from a countryside area to a city, while urban to rural migration is the opposite. Rural to rural migration refers to movement between different rural areas.
The causes of rural-urban migration in Nigeria are associated to unemployment. People mostly come to urban areas hoping to get employment.
Three causes of Cultural change are, migration, trade, and warfare.
Three syllables are in the word migration: Mi-gra-tion.
rural-urban migration