During the eight years between Iraq's formal declaration of war on September 22, 1980, and Iran's acceptance of a cease-fire with effect on July 20, 1988, at the very least half a million and possibly twice as many troops were killed on both sides, at least half a million became permanent invalids, some 228 billion
nomads are people who moved from one place to another depending on the weather, food, etc. bipedal are animals who are able to walk with 2 legs. hunters and gatherers preceeded nomads and decided to settle in one place instead of moving around periodically. tool makers makes tool I guess.
A concept of federalism where local, state, and national governments interact cooperatively and collectively to solve common problems separately, but more or less equally (dual federalism).
Hope this helps! :)
