Answer:
Because Mexico–U.S. migration represents the largest sustained migratory flow between two nations worldwide, much of the theoretical and empirical work on migration in the Americas has focused on this single case. Yet in the past few decades, migration has emerged as a critical issue across all nations in Latin America and the Caribbean. Indeed, over the past fifteen years, this region has changed its historical position from a net migrant-receiving region to one of the leading sending areas of the world.
Smaller scale has less variables and correlations to be based on while a larger scale has a bigger amount of mathematical numbers to be based on
He got it at the cave Hira
False, Copper Canyon is the biggest canyon in North America.
Idk go on google in find out
