Respuesta :

There are seven continents: North America, South America, Asia, Europe, Africa, Antarctica and Australia.
There are seven continents in Earth.

They are (from largest in size to smallest): 
Asia ( comprises 50 countries )
Africa ( comprises 54 countries )
North America ( comprises 23 countries )  
South America ( comprises 12 countries )
Antarctica 
Europe ( comprises 51 countries )
Australia