Explanation: Advantages. Some historians have suggested that two-party systems promote centrism and encourage political parties to find common positions which appeal to wide swaths of the electorate. It can lead to political stability which leads, in turn, to economic growth.
The main problems of evidence in dealing with early civilizations is that much of the potential evidence itself--such as tools, homes, etc--has vanished due to the fact that it was made of materials such as clay that could not withstand the test of time and weather.
Answer:
B. The rivers in both regions flooded unpredictably.
The way that the Erie Canal improved transportation was given the fact that it provided a cheap and efficient way to move between the Hudson River and Lake Erie.
<h3>How the canal provided cheaper transportation</h3>
This canal helped the United States by providing a boost to the economy of the country.
The Erie Canal helped to cut the cost of transportation by one tenth of the previous cost.
Read more on the Erie canal here:brainly.com/question/24602911
