on what continent is greenland

Dear Isikora, 

Greenland is indeed an island, but geographers consider it part of North America. 

" Subsequently claimed by Denmark in 1380, Greenland is geographically
considered part of the North American continent, and is the world's
largest (non-continent) island, with approximately 85% of it covered
with ice."

World Atlas, <http://worldatlas.com/webimage/countrys/namerica/gl.htm> 

Official Homepage of the Greenland Homerule
<http://www.nanoq.gl/> 

I hope this answers your question. Please contact me if you need any
clarifications on this answer before you rate it. My search terms
were:
Greenland continent

Greenland is an island.

Greenland, while part of North America, is a group of islands covered
by glacial ice.