Because the condition for farminh were good, the first civilizations arose. a) in the mountains. b) near the sea. c) in river valleys. d)in the desert.

23. how does specialization among nations encourage interdependence? nations work together to share labor and resources to produce vital goods. nations sign treaties prohibiting taxes on imports. nations produce specific goods and then trade to obtain things they need. nations that are more developed agree to fund development in nations with limited industry.