GENERAL KNOWLEDGE

Detailed explanation-1: -Movement of people from one place to another in search of food and grassland is called Nomadic life.

Detailed explanation-2: -Human migration is the movement by people from one place to another with the intentions of settling, permanently in the new location. The movement is often over long distances and from one country to another, but internal migration is also possible; indeed, this is the dominant form globally.

Detailed explanation-3: -Emigration is the act of leaving a resident country or place of residence with the intent to settle elsewhere (to permanently leave a country). Conversely, immigration describes the movement of people into one country from another (to permanently move to a country).