What challenges does percy face in this chapter? how does he respond

The constitution protects the rights of citizens by limiting the power of government

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.

What is the line drawn on a production possibilities graph called?