How long did ww1 and ww2 last

How did americans disagree over the role of federal and state goverment before and durning the civil war

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.

Think local—how is the lawmaking process at a local level different from the state or federal government? use complete sentences.