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A supercontinent cycle is the break-up of one supercontinent and the development of another, which takes place on a global scale. [4] Supercontinent cycles are not the same as the Wilson cycle, which is the opening and closing of an individual oceanic basin. The Wilson cycle rarely synchronizes with the timing of a supercontinent cycle. [1]
Eurasia (/ j ʊəˈr eɪ ʒ ə / yoor-AY-zhə, also UK: /-ʃ ə /-shə) is the largest continental area on Earth, comprising all of Europe and Asia. [3] [4] According to some geographers, physiographically, Eurasia is a single supercontinent. [4]
Ur is a hypothetical supercontinent that formed in the Archean eon around 3.1 billion years ago (Ga). In a reconstruction by Rogers, Ur is half a billion years older than Arctica and, in the early period of its existence, probably the only continent on Earth, making it a supercontinent despite probably being smaller than present-day Australia.
Afro-Eurasia (also Afroeurasia and Eurafrasia) is a landmass comprising the continents of Africa, Europe, and Asia. [ 1 ] [ 2 ] The terms are compound words of the names of its constituent parts. Afro-Eurasia has also been called the " Old World ", in contrast to the " New World " referring to the Americas .
Eurasia is a continent comprising the traditional continents of Europe and Asia. It is divided from Africa by the Isthmus of Suez. Some states such as Malta are traditionally part of Eurasia, however they lie on the African tectonic plate.
A lack of international leadership, President-elect Donald Trump's second term and AI all made the list of the biggest risks the world faces in 2025, according to the Eurasia Group, which is a ...
Specialty drugs, a recent classification of pharmaceuticals, are high-cost drugs that are often biologics. [ 7 ] [ 8 ] [ 9 ] The European Medicines Agency uses the term advanced therapy medicinal products (ATMPs) for medicines for human use that are "based on genes, cells, or tissue engineering", [ 10 ] including gene therapy medicines, somatic ...
between Africa and Asia (dividing Afro-Eurasia into Africa and Eurasia): at the Isthmus of Suez; between Asia and Europe (dividing Eurasia): along the Turkish straits, the Caucasus, and the Urals and the Ural River (historically also north of the Caucasus, along the Kuma–Manych Depression or along the Don River);