What is the second smallest continent?

Explanation

Earth covers a surface area of 509,450,000 km² of which only 29% or 149,450,000 km² is land mass. The largest continent is Asia which makes up 29.8% of total land mass. Africa makes up 20.3%, North America 16. 2%, South America 11.9%, Antarctica 9.4%, Europe 6.7% whilst Australia og Oceania make up 5.7%.