A road that one must pay to use

• monopoly

• canal

• turnpike

• census

rivalry based on the special interests of different areas

• lock

• free enterprise

• cede

• sectionalism

a market where there is only one provider of a good or service

• monopoly

• capitalism

• sectionalism

• turnpike

a machine that removes seeds from cotton fiber

• cede

• patent

• cotton gin

• interchangeable parts

a part of a machine or device that can be replaced by another identical part.

• lock

• patent

• interchangeable parts

• turnpike

to transfer control of something

• sectionalism

• free enterprise

• interstate commerce

• cede

an artificial waterway

• lock

• canal

• turnpike

• patent

economic activity taking place between two or more states

• interstate commerce

• capitalism

• free enterprise

• monopoly

the official count of a population

• cede

• census

• cotton gin

• patent

sole legal right to an invention and its profits

• capital

• patent

• interchangeable part

• monopoly