Montana,Idaho and Wyoming would be affected :)
Freight train . Sorry if I’m wrong
Hello
Polythesim, flooding of the river, protection from natrual barriers and trading along the silk road
Hope this Helps
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hieroglyphics and papyrus helped grow the the civilization in Egypt because it was one of the first forms of a language and could easy be made to make a hieroglyph you needed a surface and paint. on the other hand papyrus made it possible to make writing that could be delivered by one man or stored in a place not written on a wall. it was the early form of paper. much easier to carry imagine trying to deliver a giant rock with writing just not gonna happen.
An American theoretical physicst