Explanation

South America is the fourth-largest continent

South America has an area of 17,840,000 square kilometers (6,890,000 sq mi). 

LIST

First Largest Continents by area: Asia,

Second Largest Continent by area: Africa,

Third Largest Continents by area: North America,

Fourth Largest Continents by area: South America,

Fifth Largest Continent by area: Antarctica,

Sixth Largest Continent by area: Europe,

Smallest Continents by Area: Australia.

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The continent of Africa is called the Dark Continent.

 Zealandia is considered as 8th Continent

Australia is the flattest Continent

Africa Continent has the highest number of Countries