In the table below, list a few ideas about the possible benefits of fewer restrictions to immigration. then, list the possible challenges that might arise with the following more immigration.

Benefits of increased immigration:
- immigrants pay taxes hence increased revenue 
- job vacancies and skills gaps can be filled
- services to an aging population can be maintained when there are insufficient young people locally
- host countries are enriched by cultural diversity 
- immigrants bring  energy and innovation 

Challenges of Increased Immigration:
-increases in population can put pressure on public services
- unemployment may rise if there are unrestricted numbers of immigrants
- ease of movement may facilitate organized crime and human trafficking
- may be integration difficulties and friction with local people 
-migrants may be exploited