Which Mayan agricultural technique required steps to be cut into the hillsides to expand farmable land? terrace farming
crop rotation
slash and burn
multiple harvests

How was george washington able to defeat the british in the battle of trenton and princeton

Before world war 1 started, austria-hungry was wary of (spain or serbia) because of border disputes

Which course of action did president carter propose in order to solve this problem for the next generation? a. contract with foreign nations to build wind turbines b. reduce federal spending on solar cell energy research c. drill fewer offshore wells to conserve marine life d. develop alternative energy sources