Which crop contributed the greatest wealth to the united states in the early nineteenth century?

What is significant about official languages in russian republics? why would it matter?

The answer because i don’t know it someone

How did the united states respond when north vietnam attacked a us warship and sent troops to south vietnam in the early 1960s? a.the united states declined to assist south vietnam against the north. b.us leaders authorized south vietnam to invade north vietnam. c.the president did not sign the gulf of tonkin resolution. d.congress authorized the president to escalate the conflict.