Archimedes, a great Greek inventor, created the to help move water to a lower level.

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.

The five extra days added to the egyptian calendar were for?

After studying the timeline above, what observations can you make about u.s. environmental policy between 1970 and 1996?