Across
- 1. Factors War and natural disasters are the example of which factor
- 2. what is an official permission that allows us into a specific country
- 5. Which migration is also known as circular migration
- 6. what is the movement of people from one place to another
Down
- 1. what is an official document issued by a national government
- 3. factor which is the factor of reasons for immigrating because of something desirable
- 4. which migration is within the borders of a nation