a. the United States government arguing for change in freedom of speech laws in a country where freedom of speech is restricted
Railroads were a major part of the industrial revolution as it was a more efficient way of getting around. It was also a driving force because it caused more investments into transportation
Answer:
Beginning with the top-most layer (most recent) is necessary so as not to disturb or destroy fragile remains and the only real method. One couldn't start at the bottom and work their way up!
Explanation:
I think it was near Pennsylvania
