No, it is not an adverb. It is a proper noun, the name of a continent.
No, it is not. South America is a proper noun and South American is a proper adjective. There is no adverb form used for most place names.
Yes, it is, when it is used with a noun to mean from the south (south wind), or to mean southern (south shore, south side). Otherwise, it can be a noun for a direction, or region to the south, or it can be an adverb (headed south).
Yes, south can be an adverb when it indicates direction of motion (e.g. driving south). It can also be an adjective.
An adverb phrase modifies the verb, in this case telling where. The adverb phrase is "throughout Central America."
Yes, it is an adverb. It generally means "toward the south" or in a southerly direction.
South America
South of North America is South America.
Most of South America is south of the equator.South of the equator
South America
It is located in South America. The countries that are near it are Colombia, Venezuela, Peru, Brazil, Bolivia, and Guyana.
Uruguay is located in the continent South America
the continent of colombia is south America