Eurasia is a continental area of Europe and Asia. It is located in the northern eastern hemisphere surrounded by the Pacific Ocean to the east, the Atlantic Ocean to the west, the Mediterranean ocean to Africa and the Arctic Ocean to the north. There are over 90 countries that fall in Eurasia Eurasia was formed 375-325 million years ago and is known host ancient civilization like Indus valley mesoptamia and china. Most of Eurasia lies on the Eurasian Plate which is one of several large plates that cover the planet. The Ural mountains have allows been an un foffical dividing line between asia and Europe. The ural mountain is a mountain ranging from the north to the south linking from coast of the Artic ocean to the Ural rivers, through west Russia and the northwest of Kazakhstan.
image source (this the ural mountains)
Eurasia countries https://en.wikipedia.org/wiki/List_of_Eurasian_countries_by_population