What mountain range separates asia from europe?

Question

What mountain range separates asia from europe?

Answer 1

they need to be big to stop them spreading

Answer 2

Mt. Ural

Answer 3

The Ural Mountains separate Asia from Europe.  

They are located at the edge of Russia and the beginning of Siberia.

http://en.wikipedia.org/wiki/Ural_Mounta...

The Ural Mountains (Russian: Ура́льские го́ры, Uralskiye gory) (also known as the Urals, the Riphean Mountains in Greco-Roman antiquity, and known as the Stone Belt) are a mountain range that runs roughly north and south through western Russia. They are usually considered as the natural boundary between Europe and Asia.

Geography

The Urals extend 2,500 km from the Kazakh steppes along the northern border of Kazakhstan to the coast of the Arctic ocean. Vaygach Island and the island of Novaya Zemlya form a further continuation of the chain. Geographically this range marks the northern part of the border between Asian and European sections of the Eurasian continent. Its highest peak is Mount Narodnaya (Poznurr, 1,895 m). Erosion has exposed considerable mineral wealth in the Urals, including gems such as topaz and beryl.The Virgin Komi Forests in the northern Urals are recognized as a World Heritage site. 68% of the Ural Mountains are located in Russia, whilst the remaining 32% are located in Kazakhstan.[1][2] Geographers have divided the Urals into five regions: South, Middle, North, Subarctic and Arctic Urals. The tree line drops from 1,400 metres to sea level as progressing north. Sections of the south and middle regions are completely forested.