248 résultats pour "pollution"
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La pollution est-elle selon vous l'une des fatalités du monde moderne ?
2 catastrophes naturelles. De plus, les catastrophes naturelles sont de plus en plus meurtrières : elles ont fait environ 300'000 victimes dans le monde en 2010 et 208 millions de sinistrés, dont 178 millions dans des inondations. A lui seul, le séisme du 12 janvier en Haïti a fait plus de 222'000 morts. Ces événements ont également causé d’énormes pertes économiques. Au Chili, les coûts se sont élevés à 110 milliard s de dollars, un montant qui a eu comme conséquence de freiner...
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Yangtze - Geography.
A Agriculture and Industry Today about 400 million people, or about one-third of the population of China, live in the Yangtze Basin. Many are engaged in agriculture. The basin contributes nearlyhalf of China’s crop production, although only one-quarter of the basin is arable. The most fertile areas for farming are the Sichuan Basin, the plains between theYangtze and its tributary the Han, and the plains of the lower basin. In all about 40 percent of the cereals, more than 30 percent of the cott...
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Denmark - country.
forests, which cover just 11.6 percent of the country, include conifers (mainly fir, spruce, larch, and pine), beech, oak, birch, and ash. Several varieties of ferns andmosses common to the northern European mainland are also found. Wild animals are scarce. Natural animal life is limited to deer and small animals such as foxes,squirrels, hares, wild ducks, pheasants, and partridges. Numerous species of freshwater fish live in Denmark’s streams and lakes. F Environmental Issues Considered highly...
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Nova Scotia - Geography.
summer. Nova Scotia receives an average of more than 1,140 mm (45 in) of rain annually, with the Atlantic shore receiving 1,400 mm (55 in) or more. Most of the provincereceives about 1,900 mm (about 70 in) of snow, and considerable winter precipitation comes in the form of rain or ice storms. The average temperature in January, thecoldest month, is generally about -4°C (about 25°F) near the coast and somewhat colder toward the interior. The average temperature in July, the hottest month, isabout...
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Nova Scotia - Canadian History.
summer. Nova Scotia receives an average of more than 1,140 mm (45 in) of rain annually, with the Atlantic shore receiving 1,400 mm (55 in) or more. Most of the provincereceives about 1,900 mm (about 70 in) of snow, and considerable winter precipitation comes in the form of rain or ice storms. The average temperature in January, thecoldest month, is generally about -4°C (about 25°F) near the coast and somewhat colder toward the interior. The average temperature in July, the hottest month, isabout...
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Alabama (state) - geography.
indentations along the coast are measured, the state’s shoreline is 977 km (607 mi) long. It includes the shores of Mobile Bay, an inlet 56 km (35 mi) long at the mouthof the Mobile River. Barrier beaches partly block the entrance to the bay, leaving narrow openings on either side of Dauphin Island. Dauphin and other islands alongAlabama’s coast west of Mobile Bay are separated from the mainland by Mississippi Sound. D Climate Alabama has a humid subtropical climate, with short, relatively mild...
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Alabama (state) - USA History.
indentations along the coast are measured, the state’s shoreline is 977 km (607 mi) long. It includes the shores of Mobile Bay, an inlet 56 km (35 mi) long at the mouthof the Mobile River. Barrier beaches partly block the entrance to the bay, leaving narrow openings on either side of Dauphin Island. Dauphin and other islands alongAlabama’s coast west of Mobile Bay are separated from the mainland by Mississippi Sound. D Climate Alabama has a humid subtropical climate, with short, relatively mild...
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Automobile.
Electric motors have been used to power automobiles since the late 1800s. Electric power supplied by batteries runs the motor, which rotates a driveshaft, the shaftthat transmits engine power to the axles. Commercial electric car models for specialized purposes were available in the 1980s. General Motors Corporation introduced amass-production all-electric car in the mid-1990s. Automobiles that combine two or more types of engines are called hybrids. A typical hybrid is an electric motor with ba...
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Respiratory System.
rapidly, or laughs while swallowing, the swallowing reflex may not work, and food or fluid can enter the larynx. Food, fluid, or other substances in the larynx initiate acough reflex as the body attempts to clear the larynx of the obstruction. If the cough reflex does not work, a person can choke, a life-threatening situation. TheHeimlich maneuver is a technique used to clear a blocked larynx ( see First Aid). A surgical procedure called a tracheotomy is used to bypass the larynx and get air to...
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Conservation.
cancers, Hodgkin’s disease and leukemia. Unfortunately, human activities have greatly reduced biodiversity around the world. The 20th century encompasses one of the greatest waves of extinction, orelimination of species, to occur on the planet. The greatest threat to biodiversity is loss of habitat as humans develop land for agriculture, grazing livestock, industry,and habitation. The most drastic damage has occurred in the tropical rain forests, which cover less than seven percent of the Earth’...
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TECHNOLOGIES DES TRANSPORTS
2 monde s'attendait aux changements fantastiques des habitudes de voyage consécutifs à l’apparition de l'avion à moteurs à réaction dans le service commercial de transport de passagers à la fin des années 50. Les évolutions des avions de ligne ont été nombreuses. Au cours des dernières années, on a misé sur la forme aérodynamique de l'avion, sur l'amélioration des performances et sur l'augmentation du nombre de passagers. On a déjà fait le projet d’avions en forme de « voile volante » au corps c...
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La responsabilité des énergies fossiles dans la mortalité liée à la pollution.
NOM Prénom : CLASSE : TGA Appréciation : . …………………………………………………………………………………………………………………....................................................... ............................................ …………………………………………………………………………………………………………………………………………................................... .......................................... CRITERE D’EXIGENCE : à rédiger sur feuille double, rédiger des phrases Objectif : Se préparer à la première partie de l’épreuve ponctuelle Compétences évaluées :...
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La ville de Mexico (Travaux Personnels Encadrés – Géographie - Enseignements Pratiques Interdisciplinaires)
.------------------------, ,------------------------,------------------------,-----------------------\ -,--------------- LES CONTRAINTES D'UN SITE HISTORIQUE Lorsque les Aztèq ues fo ndent Te nochtitlan, au fon d de la vallée de Mexico, à 2 250 rn d'altitude, le haut p lateau centra l du Mexiq ue est déjà, depuis le IX' siècle et le déclin de la c ivilisatio n maya, le principal foyer d e peuplement de la région. Le site est certes marécageux, mais les terres sont...
- Une pollution sans frontières Aéroport de Roissy Charles-de-Gaulle, près de Paris, France.
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How Beijing deals with pollution and global warming ?
Today we are going to talk about the pollution in beijing and progress made in improving air quality. Thus, how Beijing deals with pollution and global warming ? First, we are going to present the city, then the risks and consequences about pollution and finally we are going to show the measures taken to reduce the risks. I- Beijing is the second largest city of China with more than 20 million inhabitants and became the capital of the country after the Second World War. The city is known...
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Czech Republic - country.
enforcement of environmental regulations. Environmental considerations have also led some government officials to promote nuclear energy as a key source of powerfor the country’s future. The Czech Republic produces most of its energy by burning domestic coal. Much of the coal burned is low quality with a high ash and sulfur content—a key componentof acid rain—producing high levels of air pollution. Forests in the Czech Republic are among the most seriously affected by acid rain in all of Europe....
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Delaware - geography.
D Climate Delaware has generally hot and humid summers and mild winters. D1 Temperature In July, average daytime temperatures are usually in the upper 20°s to lower 30°sC (80°sF) or even higher. But because summer nights tend to be cooler than thedays, July averages are about 24°C (about 75°F). In addition, onshore sea breezes can reduce daytime temperatures along the coast by 3 to 6 Celsius degrees (5 to 10Fahrenheit degrees). January averages range from -1°C (31°F) at Newark, in the north, t...
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Delaware - USA History.
D Climate Delaware has generally hot and humid summers and mild winters. D1 Temperature In July, average daytime temperatures are usually in the upper 20°s to lower 30°sC (80°sF) or even higher. But because summer nights tend to be cooler than thedays, July averages are about 24°C (about 75°F). In addition, onshore sea breezes can reduce daytime temperatures along the coast by 3 to 6 Celsius degrees (5 to 10Fahrenheit degrees). January averages range from -1°C (31°F) at Newark, in the north, t...
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les instrument de la politiques climatique
protection de l’envt mesure de prévention relativement efficace - procure des recettes pub qui pv ê redistribués - elle conduit chaque pollueur à comparer le coût de réduction de sa pollution au prix de la taxe - 1 effet de substitution : les consommateurs st incités à acheter des prodt écologiques pr remplacé des prodt pollueurs dt le prix à augmenter à cause de la taxe pollution est inf au prix du quota réduire leurs émissions pr évité l’achat de quotas et réaliser 1 gain en ve...
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métallurgie, n.
L'économie de la métallurgie. Considérée comme secteur économique, la métallurgie recouvre l'ensemble des opérations de production et de transformation des métaux. Secteur à ramifications multiples (sidérurgie, mécanique, construction automobile, construction navale, aéronautique, coutellerie, etc.), elle occupe une place de première importance dans l'économie nationale. Très touchée par les chocs pétroliers de 1973 et 1979, qui ont révélé les fragilités structurelles de certaines de ses branche...
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décharge.
phosphorique par attaque sulfurique du phosphate naturel tricalcique. Il s'agit le plus souvent de sulfate hydraté, ou gypse. Ce gypse peut être également évacué en suspension hydraulique et décanté dans de vastes bassins, dont on élève progressivement les berges par raclage au fond d'une partie du produit décanté. Les centrales électriques à charbon pulvérisé produisent généralement des cendres volantes très fines, arrêtées dans les fumées par des dépoussiéreurs électrostatiques ; ces c...
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engrais, n.
Elle est essentiellement minière. La potasse naturelle extraite est purifiée par voie physique et concentrée en chlorure de potassium, utilisé comme engrais simple ou rejoignant la filière suivante. La filière des engrais composés et complexes. Le mélange de certains des produits précités permet de produire des engrais ternaires composés. On peut aussi procéder par réactions chimiques (exemple : attaque du phosphate naturel par un mélange d'acides phosphorique et nitrique, puis neutralisation à...
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biotechnologies - sciences et techniques.
cours d’expérimentation comme celles ayant la propriété de sécréter naturellement leurs propres insecticides ou des gènes de qualité contrôlant la maturation et la conservation. Lorsque tous les gènes mis en jeu seront identifiés, les plantes transgéniques pourront peut-être résister au froid, au gel, à la sécheresse et à des sols salés. Pour justifier la dissémination des organismes transgéniques, les partisans des OGM brandissent l’argument selon lequel la population va croître davantage que l...
- Action des engrais: une utilisation excessive de nitrates et de phosphates peut, non seulement contribuer à la pollution des eaux, mais aller jusqu'à contaminer les aliments.
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?stanbul - geography.
İstanbul hosts a number of annual cultural events. The İstanbul Cultural Festival, held in the summer, offers music and dance performances in more than 50 venuesthroughout the city, including outdoors at Rumelihisar ı. The city also hosts a summer jazz festival. Turkey is one of the world’s largest producers of motion pictures, anda highly regarded international film festival takes place in İstanbul during the early months of the year. V RECREATION With increasing modernization, recreation is...
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Extinction (biology) - biology.
III ROLE OF MASS EXTINCTION IN EVOLUTION Historically biologists—most famous among them British naturalist Charles Darwin—assumed that extinction is the natural outcome of competition between newlyevolved, adaptively superior species and their older, more primitive ancestors. These scientists believed that newer, more highly evolved species simply drove less well-adapted species to extinction. That is, historically, extinction was thought to result from evolution. It was also thought that this...
- Faucon pèlerin Il risque de disparaître en raison de la pollution Ce faucon est l'espèce la plus largement répandue dans le monde, parmi la famille des Falconidés.
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Sri Lanka - country.
acacias, and orchids are found in many areas. The animal life of Sri Lanka includes 88 species of mammals, 21 of which are threatened with extinction. The Asian elephant, cheetah, leopard, and several species ofmonkey are endangered and officially protected. The island’s many species of primates include the long-tailed langur, toque macaque, and slender loris. Other mammalsinclude the sloth bear, several species of deer, mongoose, and wild boar. Reptiles are numerous, with 144 known species. Som...
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Rhode Island - geography.
C (73° F). Along the northern state line, the January mean temperature is about 1° C (about 2° F) colder than in Warwick in January. Along the ocean coast, theJanuary mean temperature is -1° C (30° F). Warm season temperatures are also influenced by the ocean and bay, so temperatures are usually cooler along the coastthan in the interior. The difference tends to be greatest in spring and early summer. Winter temperatures in Rhode Island are usually above -7° C (20° F), buttemperatures colder by...
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Rhode Island - USA History.
C (73° F). Along the northern state line, the January mean temperature is about 1° C (about 2° F) colder than in Warwick in January. Along the ocean coast, theJanuary mean temperature is -1° C (30° F). Warm season temperatures are also influenced by the ocean and bay, so temperatures are usually cooler along the coastthan in the interior. The difference tends to be greatest in spring and early summer. Winter temperatures in Rhode Island are usually above -7° C (20° F), buttemperatures colder by...
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Cuba - country.
Only two land mammals, the hutia, or cane rat, and the solenodon, a rare insectivore that resembles a rat, are known to be indigenous. The island has numerous batsand nearly 300 kinds of birds, including vultures, wild turkeys, quail, finches, gulls, macaws, parakeets, and hummingbirds. The bee hummingbird of Cuba is thesmallest bird in the world. Among the few reptiles are tortoises, caimans, the Cuban crocodile, and a species of boa that can attain a length of 3.7 m (12 ft). More than700 speci...
- Action des engrais: une utilisation excessive de nitrates et de phosphates peut, non seulement contribuer à la pollution des eaux, mais aller jusqu'à contaminer les aliments
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- Action du mercure: cette forme de pollution de l'hydrosphère devient d'autant plus gênante en raison de l'usage de plus en plus croissant de ce métal et de ses dérivés, tous de toxicité élevée.
- Action du mercure: cette forme de pollution de l'hydrosphère devient d'autant plus gênante en raison de l'usage de plus en plus croissant de ce métal et de ses dérivés, tous de toxicité élevée
- pluies acides, phénomène résultant de la pollution de l'air par les oxydes de soufre produits par l'usage de combustibles fossiles riches en soufre, ainsi que par les oxydes d'azote qui se forment lors de toute combustion dans l'atmosphère.
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Percy Bysshe Shelley
par Pierre Emmanuel
" Tous ceux qui me connaissent ou entendent parler de moi - hormis, je
crois, cinq personnes tout au plus - me regardent comme un rare prodige de
crime et de pollution ", écrit Shelley à son ami Peacock en 1819.
par Pierre Emmanuel
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TPE: Le transport routier, principal responsable de l'augmentation de la pollution atmosphérique
La séparation entre les domiciles et les lieux de travail allonge les distances de trajet en voiture, ainsi en 1999, trois actifs sur cinq travaillent hors de leur commune, àune distance moyenne de 15 kilomètres. De même les lieux d'achat et de loisirs sont éloignés des lieux de résidence. A cela s'ajoute une utilisation en hausse de la voiture pour les trajets de très courte distance qui sont extrêmement polluants. En quinze ans, le nombre de ménages équipés d'au moins une voiture n'a cessé de...
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déchets, traitement des (faune & Flore).
5 DÉCHETS DANGEREUX Les déchets dangereux englobent les produits chimiques toxiques et les substances inflammables, radioactives ou biologiques. Ces déchets peuvent se présenter sous laforme de boue, de liquide, de gaz ou de solide. Les substances radioactives sont dangereuses car une exposition prolongée à leur rayonnement ionisant provoque souvent des lésions chez les organismes vivants ( voir effets biologiques des radiations) et ces substances restent actives très longtemps. La gestion de...
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Les déchets au Maroc
http://xxi.ac-reims.fr/ec-elem-pmc-vitry/articles.php?lng=fr&pg=1589 Travail réalisé par: Alami Oumaima Baloul Soukaina El Kafil Kawtar Sommaire : I. Introduction. II. Qu’est ce qu’un déchet ? Et quels sont leurs types ? III. Etude de cas I: La décharge de Médiouna. 1. Quels effets néfastes ont les déchets sur notre environnement ? a. Pollution de l’air. b. Pollution de l’eau. 2. Quels effets néfastes ont les déchets sur notre santé ? a. Mode de vie de la populati...
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Bureau de recherches géologiques et minières [BRGM] - sciences et techniques.
dans un cadre commercial institutionnel. 3. 2 Huit domaines thématiques Les activités du BRGM évoluent au fil du temps afin de coller aux préoccupations et aux problématiques du moment. Ainsi, les années 1960-1970 ont été une période d’inventaire des ressources minérales, la situation géopolitique poussant les pays à l’indépendance en termes d’approvisionnement en matières premières et ressources énergétiques. Dans les années 1980, les questions liées à la pollution des eaux souterraines, aux r...
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Connecticut - geography.
The state’s shoreline, when all the bays and inlets are taken into account, has a total length of 995 km (618 mi). The coastline is deeply indented by long estuaries androcky inlets, and there are many sandy beaches and stretches of tidal marsh. There are several good harbors along the coast, the most important of which is at NewHaven. A few small islands lie offshore in Long Island Sound. D Climate Connecticut has long, hot summers and cold winters. The climate does not vary greatly from place...
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Connecticut - USA History.
The state’s shoreline, when all the bays and inlets are taken into account, has a total length of 995 km (618 mi). The coastline is deeply indented by long estuaries androcky inlets, and there are many sandy beaches and stretches of tidal marsh. There are several good harbors along the coast, the most important of which is at NewHaven. A few small islands lie offshore in Long Island Sound. D Climate Connecticut has long, hot summers and cold winters. The climate does not vary greatly from place...
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Manitoba - Geography.
E Plant Life Forests cover 66 percent of Manitoba. The main forest area is divided into the boreal forest and the mixed-wood forest. The boreal, or northern, forest containsconiferous (cone-bearing) trees, especially white and black spruce, balsam fir, and jack pine. South of the boreal forest is the mixed-wood forest, which contains conifers as well as such deciduous trees as white birch, aspen, poplar, and Manitoba maple. Prairie land is found in the southwest, where the natural vegetation i...
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Manitoba - Canadian History.
E Plant Life Forests cover 66 percent of Manitoba. The main forest area is divided into the boreal forest and the mixed-wood forest. The boreal, or northern, forest containsconiferous (cone-bearing) trees, especially white and black spruce, balsam fir, and jack pine. South of the boreal forest is the mixed-wood forest, which contains conifers as well as such deciduous trees as white birch, aspen, poplar, and Manitoba maple. Prairie land is found in the southwest, where the natural vegetation i...
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Belgium - country.
European Union (EU) directives aimed at improving Belgium’s environmental conditions concern water treatment and water quality, both significant issues in such anindustrial center. Before these directives were issued, the Meuse River, a major source of drinking water, had become polluted from steel production wastes. Otherrivers were polluted with animal wastes and fertilizers. However, Belgium failed to meet EU targets set for the early 2000s for protecting its rivers from farm pollutionand for...
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Ohio - geography.
conflict with modified Gulf air and causing frontal or cyclonic storms. Gulf air is dominant in summer. In fall, polar air passing over Lake Erie is modified, delaying thekilling frost along the adjacent shoreline. C1 Temperatures The mean annual temperatures for the state range from 9° C (48° F) in the northeast to 13° C (55° F) in the south. Average January temperatures range from -4° C(24° F) in the west to 2° C (35° F) in the south. July averages are 24° C (76° F) in the south and 23° C (73...
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Ohio - USA History.
conflict with modified Gulf air and causing frontal or cyclonic storms. Gulf air is dominant in summer. In fall, polar air passing over Lake Erie is modified, delaying thekilling frost along the adjacent shoreline. C1 Temperatures The mean annual temperatures for the state range from 9° C (48° F) in the northeast to 13° C (55° F) in the south. Average January temperatures range from -4° C(24° F) in the west to 2° C (35° F) in the south. July averages are 24° C (76° F) in the south and 23° C (73...
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Vietnam - country.
E Natural Resources Vietnam’s most valuable natural resource is its land, particularly the fertile, alluvial soils in the Red and Mekong deltas. Some 29 percent of the land is currently beingcultivated. Vietnam has some valuable mineral resources, including gold, iron, tin, zinc, phosphate, chromite, apatite, and anthracite coal. Most deposits are located in the northernpart of the country. Few attempts were made to extract these minerals until the French takeover of Vietnam at the end of the 1...
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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...
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Minnesota - geography.
C Climate Minnesota’s climate is classified as humid continental because normally there is a sufficient amount of precipitation to provide at least some surplus for runoff, andbecause Minnesota’s temperature conditions are largely controlled by its location in the interior of the large landmass of North America. The result is extreme seasonaltemperature variations. The average January temperature is about -18°C (about 0°F) in the northwest and about -10°C (about 14°F) in the south, but thetherm...