Long mountain ranges?

Question

where do the longest mountain ranges occur- continents or ocean basins? why?

Answer 1

Longest land mountain range is the Andes, located in South America, and extend about 5000 miles

http://www.answers.com/topic/andes?cat=t...

Longest oceanic mountain Range is the Mid-Atlantic Ridge. Since water covers 70% or so of the earth's surface, there is more area to be mountainous, even if under water. http://findarticles.com/p/articles/mi_hb...

http://earthguide.ucsd.edu/mar/intro.htm...