<em>Its a downfall of the united states but influencing of global power. </em>
The primary religious difference between the European nations that explored the Americas was that a large number of them were Catholic (mostly from Spain) and a large number of them were Protestant (mostly from England), although it tensions between the European nations in the Americas usually revolved around territory, not religion.
Answer:
Rome's language
The factor that most contributed to the development of Roman civilization was Rome's language.
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I think the answer is A, but im not 100% positive
please dont be angry if its wrong.
I hope this helps you! :D