811 résultats pour "ocean"

• Norvège.

  En 2008, la population de la Norvège était estimée à 4,64 millions d'habitants. Sa densité, de 15 habitants au km², est la plus basse d’Europe. Le nombre d’habitantsaugmente lentement. La Norvège connaît en effet une croissance démographique (0,4 p. 100 par an durant la période 1990-1995) et un indice de fécondité (1,78 enfant parfemme) plus élevés que dans les autres pays d’Europe occidentale. En 2008, le taux de natalité était estimé à 11,10 p. 1 000 et le taux de mortalité à 9,30 p. 1 000. Le...

• Sweden - country.

  mi) and is Sweden’s second largest lake, after Vänern. The two lakes, together with several smaller lakes, rivers, and canals, form an internal water route called theGöta Canal. Built in the early 19th century, the Göta Canal extends for about 386 km (about 240 mi) and provides a scenic transportation link between the Baltic Sea,at Stockholm, and the Kattegat. Sweden’s other large lakes in the district include Mälaren, Hjälmaren, and the famously picturesque Siljan. D Climate Although one-seven...

• Pennsylvania - geography.

  B Rivers and Lakes There are three major river basins in Pennsylvania: the Susquehanna, the Ohio, and the Delaware. Together they drain more than 90 percent of Pennsylvania’s landarea. Most of eastern and central Pennsylvania is drained by the Susquehanna and Delaware systems. The western part of the state is drained by the Allegheny andMonongahela rivers, which join at Pittsburgh to form the Ohio. In addition to the three major river basins, short streams flowing into Lake Erie drain the north...

• Pennsylvania - USA History.

  B Rivers and Lakes There are three major river basins in Pennsylvania: the Susquehanna, the Ohio, and the Delaware. Together they drain more than 90 percent of Pennsylvania’s landarea. Most of eastern and central Pennsylvania is drained by the Susquehanna and Delaware systems. The western part of the state is drained by the Allegheny andMonongahela rivers, which join at Pittsburgh to form the Ohio. In addition to the three major river basins, short streams flowing into Lake Erie drain the north...

• Colonialism and Colonies.

  by plundering the riches of existing civilizations in the Americas and by seizing the area’s mineral wealth through mining. These practices were promoted by the policy of mercantilism that many European colonial powers adopted. Those who advocated mercantilism believed that exports toforeign countries were preferable both to trade within a country and to imports because exports brought more money into the country. They also believed that thewealth of a nation depended primarily on the possession...

• Colonialism and Colonies .

  by plundering the riches of existing civilizations in the Americas and by seizing the area’s mineral wealth through mining. These practices were promoted by the policy of mercantilism that many European colonial powers adopted. Those who advocated mercantilism believed that exports toforeign countries were preferable both to trade within a country and to imports because exports brought more money into the country. They also believed that thewealth of a nation depended primarily on the possession...

• Native Americans of North America.

  addition to smallpox and measles, explorers and colonists brought a host of other diseases: bubonic plague, cholera, typhoid fever, scarlet fever, pleurisy, mumps,diphtheria, pneumonia, whooping cough, malaria, yellow fever, and various sexually transmitted infections. Despite the undisputed devastation wreaked on Indian populations after European contact, native populations showed enormous regional variability in their response todisease exposure. Some peoples survived and, in some cases, even...

• Native Americans of North America - Canadian History.

  addition to smallpox and measles, explorers and colonists brought a host of other diseases: bubonic plague, cholera, typhoid fever, scarlet fever, pleurisy, mumps,diphtheria, pneumonia, whooping cough, malaria, yellow fever, and various sexually transmitted infections. Despite the undisputed devastation wreaked on Indian populations after European contact, native populations showed enormous regional variability in their response todisease exposure. Some peoples survived and, in some cases, even...

• eau, cycle de l' (faune & Flore).

  L’homme intervient dans le cycle de l’eau depuis des millénaires. Des canaux d’irrigation sont construits pour amener l’eau dans les régions arides. Des puits sont creuséspour prélever l’eau du sol. Le pompage excessif des nappes à partir de ces puits a provoqué une chute du niveau hydrostatique, épuisant ainsi de façon irréversibled’anciennes sources d’eau et provoquant la pénétration d’eau salée dans le sol de basses régions côtières à forte densité de population. Des levées sont construites p...

• eau, cycle de l' 1 PRÉSENTATION eau, cycle de l', circulation continue et permanente de l'eau dans l'atmosphère, à la surface et dans le sous-sol de la Terre.

  L’homme intervient dans le cycle de l’eau depuis des millénaires. Des canaux d’irrigation sont construits pour amener l’eau dans les régions arides. Des puits sont creuséspour prélever l’eau du sol. Le pompage excessif des nappes à partir de ces puits a provoqué une chute du niveau hydrostatique, épuisant ainsi de façon irréversibled’anciennes sources d’eau et provoquant la pénétration d’eau salée dans le sol de basses régions côtières à forte densité de population. Des levées sont construites p...

• Canada