Road travel was an alternative to river travel because: * O most rivers in the eastern United States flowed north to south
rivers flowing north to south could not accommodate east to west trade.
rivers flowing east to west could not accommodate north to south trade.
rivers in the eastern United States were turnpikes.

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.