What was a major cause of enivronmental pollution in american cities during the late 1800s

Was the civil war inevitable? could anything have been done through compromise to stop it, or did it have to happen?

List a few examples of city-states that practiced oligarchy in ancient greece

Which of the following statements describes the philosophy of thomas hobbes? democracy is necessary for a country to succeed. b. a country needs a ruler with absolute power to succeed. c. people have natural rights to life, to be free and to own property. d. a country needs no rulers or government to be safe and successful.