Match the following.
1. connected Charleston and Hamburg
Pennsylvania canals
2. connected Albany and Schenectady
Baltimore and Ohio Railroad
railroad transportation
3. Tom Thumb
4. caused a decline in canal building
5. made New York City a leading port
Portage Railroad
Mohawk and Hudson Railroad
6. connected Philadelphia and Pittsburgh
South Carolina Railroad
7. completed in 1834
Erie Canal
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How are diamonds and graphite the same? how are they different? a. both diamonds and graphite are made entirely out of carbon. they are different because the carbon atoms are arranged differently with a more three-dimensional structure in diamonds and flat layers in graphite. b. both diamonds and graphite have atoms that are arranged with flat layers. they are different because only graphite are made entirely out of carbon. c. both diamonds and graphite have atoms that are arranged with three-dimensional structures. they are different because only diamonds are made entirely out of carbon. d. diamonds and graphite have no similarities. they are different because the carbon atoms are arranged differently with a more three-dimensional structure in diamonds and flat layers in graphite.