What are the most challenging sources of conflict and crisis in the 21st century?

Thank you!

The 1884 amendment added onto the chinese exclusion act included what additional stipulation? the law would apply to ethnic chinese regardless of which asian country they originated from. the law would provide newly arrived chinese immigrants with land in the oklahoma territory. the law would establish all chinese americans as permanent aliens and deny them citizenship. the law would prohibit chinese immigrants from reentering the united states once they exited.

Which document did the second continental congress send king george iii to refaffirm colonist allegiance to him but not to parliament

Which is true about pontiacs war in 1763