Actually every single one is correct, A<B<C they all are factors in the decline of Sumer.
Thirteenth, Fourteenth, Fifteenth amendments
The Chinese citizens didn't like how they were being treated so the rebelled against the government
Answer:
History of technology, the development over time of systematic techniques for making and doing things.The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both fine and applied.
Well.. for one:
They helped balance the Federalism..
<span>Chief Justice Marshall's decision in McCulloch v. Maryland says an action or law of a state cannot impede the valid constitutional exercises of power by the Federal government. By demarcating a clear line between federal and state power, it allowed for a more cooperative relationship between states and the federal government
</span>Hope this helped :)