Answer:
They provided trading routes, also helped people travel, it provided electricity through hydroelectric dams, and last but not least, it was a source of drinking water.
Explanation:
I know you said 2, but I gave you 4 for incase you want to use more.
The statement about how Karl Marx and Adam Smith are different would be:
Adam Smith and Karl Marx are polar opposites in the political-economic, in such that Smith would in no way agree<span> with a revolution of the proletariat.
I hope my answer has come to your help. God bless and have a nice day ahead!
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Farmer because I got it right on Plato class
