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No process is known that can decrease Earth's D/H ratio over time. [39] This loss of the lighter isotope is one explanation for why Venus has such a high D/H ratio, as that planet's water was vaporized during the runaway greenhouse effect and subsequently lost much of its hydrogen to space.
Most water in Earth's atmosphere and crust comes from saline seawater, while fresh water accounts for nearly 1% of the total. The vast bulk of the water on Earth is saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land.
The Caspian Sea is the world's largest inland body of water, described as the world's largest lake and usually referred to as a full-fledged sea. [2] [3] [4] An endorheic basin, it lies between Europe and Asia: east of the Caucasus, west of the broad steppe of Central Asia, south of the fertile plains of Southern Russia in Eastern Europe, and north of the mountainous Iranian Plateau.
A riparian zone or riparian area is the interface between land and a river or stream. [2] In some regions, the terms riparian woodland, riparian forest, riparian buffer zone, riparian corridor, and riparian strip are used to characterize a riparian zone.
The Serbian Wikipedia (Serbian: Википедија на српском језику, Vikipedija na srpskom jeziku) is the Serbian-language version of the free online encyclopedia Wikipedia. Created on 16 February 2003, it reached its 100,000th article on 20 November 2009 before getting to another milestone with the 200,000th article on 6 July ...
The Sistema Ibérico mountain range borders the Meseta Central on its eastern end and separates the Meseta Central from the Ebro valley and from the Mediterranean coast.. This system runs northwest-southeast between the Ebro plain and the Meseta Central for over 500 km, from the La Bureba corridor in Burgos Province close to the Cordillera Cantábrica to the Mediterranean sea close to Valencia ...
Delnero, Paul, "A Land with No Borders: A New Interpretation of the Babylonian “Map of the World”", Journal of Ancient Near Eastern History, vol. 4, no. 1-2, pp. 19-37, 2017; Finkel, Irving, "The Babylonian Map of the World, or the Mappa Mundi", in Babylon: Myth and Reality, ed. Irving Finkel and Michael Seymour. London: British Museum ...
A comprehensive sector policy, introduced in 1994, aimed at increasing water and sanitation investments through targeted transfers to municipalities, improving service quality and efficiency by promoting private sector participation in the poorest parts of the country where utilities were not performing well, the establishment of autonomous regulatory agencies at the national level, increased ...