need help with both questions pls but if you can only answer one that’s fine ! WILL MARK BRAINLIST !!

What group has historically made up the largest portion of immigrants in mexico?

Which statement is an accurate description of life in mongolia in recent years? the majority of the population now lives in cities. after a brief period of democracy, communists regained control of the government. subsistence farming remains the primary economic activity in the country. relations between mongolia and china are now tense. -gradpoint

Recrystallization definition earth science