The United States doesn't belong since it isn't a continent like the other two.
the united states, because it is a country.
The United States of America
United States of America
North America
Actually, Alaska is not a country, it is one of the states that belong to the United States of America.
Both of them are part of the United States of America.
The Mississippi River is entirely in the United States, North America.
United States of America
it would be Brazil because it is in south hemisphere
No, North Dakota is in the United States of America and belongs to the USA.
New Mexico is a state within the United States of America.
Actually, Alaska is not a country, it is one of the states that belong to the United States of America.