Explain what the democratic river means and also, explain the advantages of: Eerie Canal , Advantages of steam boats over sailboats ,Railroads and Loss of Manor System

Read chapter 6: The Democratic River
Explain what the democratic river means and also, explain the advantages(Big Changes)of the 4 things:
1-Eerie Canal
2-Advantages of steam boats over sailboats
3-Railroads
4-Loss of Manor System