Answer:
A) Irrigation systems
This is because those civilizations had alot of rivers
Pleasse mark as brainliest if I helped
your awnser is "military-industrial complex"
Explanation:
a) the pyramids
Democrats favored expansion in order to increase their power in Congress and expand slavery; Whigs opposed expansion because they feared losing power in Congress.
He wanted to return America back to what it was before WW1
