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This is a list of continental landmasses, continents, and continental subregions by population. For statistical convenience, the population of continental landmasses also include the population of their associated islands .
A continent is any of several large geographical regions. Continents are generally identified by convention rather than any strict criteria. A continent could be a single landmass or a part of a very large landmass, as in the case of Asia or Europe. Due to this, the number of continents varies; up to seven or as few as four geographical regions ...
The seven-part series, in which each episode focuses on one continent, premiered on BBC One on 27 October 2019 and is narrated and presented by naturalist Sir David Attenborough. [ 1 ] [ 2 ] Over 1,500 people worked on the series, which was filmed over 1,794 days, with 92 shoots across 41 countries.
The speculation that continents might have "drifted" was first put forward by Abraham Ortelius in 1596. A pioneer of the modern view of mobilism was the Austrian geologist Otto Ampferer. [3] [4] The concept was independently and more fully developed by Alfred Wegener in his 1915 publication, "The Origin of Continents and Oceans". [5]
A continent is a large geographical region defined by the continental shelves and the cultures on the continent. [1] In the modern day, there are seven continents. However, there have been more continents throughout history. Vaalbara was the first supercontinent. [2] Europe is the newest continent. [3]
The thickness of Earth's crust (km). The continental crust consists of various layers, with a bulk composition that is intermediate (SiO 2 wt% = 60.6). [5] The average density of the continental crust is about, 2.83 g/cm 3 (0.102 lb/cu in), [6] less dense than the ultramafic material that makes up the mantle, which has a density of around 3.3 g/cm 3 (0.12 lb/cu in).
Continental drift influences both cold and warm climatic episodes. Atmospheric circulation and climate are strongly influenced by the location and formation of continents and supercontinents. Therefore, continental drift influences mean global temperature. [6] Oxygen levels of the Archaean were negligible, and today they are roughly 21 percent.
The four continents, plus Australia, added later.. Europeans in the 16th century divided the world into four continents: Africa, America, Asia, and Europe. [1] Each of the four continents was seen to represent its quadrant of the world—Africa in the south, America in the west, Asia in the east, and Europe in the north.