South America
the closest continent to North America without "touching" it is Asia which is just 3 miles from a Russian island to an Alaskan island.
North America is a continent. It cannot contain a continent.
North America
The tiny island of Aruba is located in the Caribbean Sea. Although closer to the South American continent, it is generally considered to be part of North America.
North America is a continent and not a single country.
The continent that the white house is in is North America
Asia is closet to North America. This is a big continent.
South America is closer to Africa than North America.
North america
south America is closer
South America is closer to the equator
South America is closer to the equator
Greenland is between North America and Europe, but closer to North America.
South america
South America.
Continental drift, although quite the opposite is happening. North America and Europe are separating, not coming closer together.
South America. The equator passes through South America.
The closest place to the southern US border is Mexico, which happens to be in North America, just like the US is. The continent that borders North America is South America.