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Aqueduct arches (65 m tall) over the Alcântara valley. Note the pointed shape of the arches. The aqueduct seen from the west. The Águas Livres Aqueduct (Portuguese: Aqueduto das Águas Livres, pronounced [ɐkɨˈðutu ðɐz ˈaɣwɐʒ ˈlivɾɨʃ], "Aqueduct of the Free Waters") is a historic aqueduct in the city of Lisbon, Portugal.
Rivers with an average discharge of 5,000 m 3 /s or greater, as a fraction of the estimated global total.. This article lists rivers by their average discharge measured in descending order of their water flow rate.
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.
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Many people do not have any access, or do not have access to quality and quantity of potable water, though water itself is abundant. Poor people in developing ...
The East Antarctic Ice Sheet (EAIS) lies between 45° west and 168° east longitudinally. It was first formed around 34 million years ago, [3] and it is the largest ice sheet on the entire planet, with far greater volume than the Greenland ice sheet or the West Antarctic Ice Sheet (WAIS), from which it is separated by the Transantarctic Mountains.
Sistema Ox Bel Ha (Spanish: sistema, lit. 'system', Yucatec Maya: ox bel ha, lit. 'Three Paths of Water'; short Ox Bel Ha) is a cave system in Quintana Roo, Mexico.It is the longest explored underwater cave in the world [3] and ranks second including dry caves.
Água de Pau Massif is a stratovolcanic complex, located in the central part of the island of São Miguel, in the Portuguese archipelago of the Azores.More recognizable for the Lagoa do Fogo at its centre, the volcanic complex includes centuries of geomorphological structures that include lava domes, cones and encrusted lava flows that have marked its history from, the last, 45,000 years BC.