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  2. Continental System - Wikipedia

    en.wikipedia.org/wiki/Continental_System

    The Continental System had mixed effects on British trade. The embargo encouraged British merchants to seek out new markets aggressively and to engage in smuggling with continental Europe. Napoleon's exclusively land-based customs enforcers could not stop British smugglers, especially as these operated with the connivance of Napoleon's chosen ...

  3. Continent - Wikipedia

    en.wikipedia.org/wiki/Continent

    In geology, a continent is defined by continental crust, which is a platform of metamorphic and igneous rocks, largely of granitic composition. Continental crust is less dense and much thicker than oceanic crust, which causes it to "float" higher than oceanic crust on the dense underlying mantle. This explains why the continents form high ...

  4. Continentalism - Wikipedia

    en.wikipedia.org/wiki/Continentalism

    Continentalism refers to the agreements or policies that favor the regionalization and/or cooperation between states within a continent.The term is used more often in the European and North American contexts, but the concept has been applied to other continents including Africa, Asia and South America.

  5. Glossary of geography terms (A–M) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geography_terms...

    Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not differ significantly at high tide and low tide, and around which a tidal crest circulates once per tidal period (approximately every 12 hours). The tidal amplitude increases, though not uniformly, with distance ...

  6. Boundaries between the continents - Wikipedia

    en.wikipedia.org/wiki/Boundaries_between_the...

    The Mediterranean Sea, between Africa and Europe The Atlantic Ocean around the plate boundaries (text is in Finnish). The African and European mainlands are non-contiguous, and the delineation between these continents is thus merely a question of which islands are to be associated with which continent.

  7. Geographic levels - Wikipedia

    en.wikipedia.org/wiki/Geographic_levels

    The continental scale level refers to a continent; The global scale applies to the entire world; The fluvial scale level relates to river basins (this scale level is mainly used in the context of pollution, for example). Global and continental scale: the world with continents. National and regional scale:The United States with all the states ...

  8. Köppen climate classification - Wikipedia

    en.wikipedia.org/wiki/Köppen_climate_classification

    As Köppen designed the system based on his experience as a botanist, his main climate groups are based on the types of vegetation occurring in a given climate classification region. In addition to identifying climates, the system can be used to analyze ecosystem conditions and identify the main types of vegetation within climates.

  9. Continental crust - Wikipedia

    en.wikipedia.org/wiki/Continental_crust

    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).