What are the four categories of monopolies

Natural monopoly. A market situation where it is most efficient for one business to make the product.

Geographic monopoly. Monopoly because of location (absence of other sellers).

Technological monopoly. ...

Government monopoly.

Explanation:

it provided for equal trade rights among nations in china.

the first two years of american revolution was not very encouraging for the patriots since the british were far superior in sea power, arms and troops.