It was before the era of railways hence waterways were critical factor. They determined the population centers access to trade. Examples rivers (New Orleans, Cincinnati), Great Lakes (Chicago, Detroit), canals (Milwaukee) and obviously sea port cities (New York)
Answer:
i think it is C but i could be wrong
Because they where finding new and better ways to use power so it made the industry bigger
Answer:
Why did so many Germanic tribes begin invading the Roman Empire? They were fleeing the Huns, who had moved into their lands and began destroying everything. When they were running away from the Huns, the Germanic people moved through the Roman provinces of Gaul, Spain and North Africa.
Explanation:
So basically bud they declared war because Germany had sunk the Lusitania and was therefore trying to abandon the policy against unrestricted submarine warfare