Context: In physical geography, tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons. The term "tundra" comes through Russian  ("tûndra") from the Kildin Sami word "tndâr" "uplands", "treeless mountain tract". There are three types of tundra: Arctic tundra, alpine tundra, and Antarctic tundra. In tundra, the vegetation is composed of dwarf shrubs, sedges and grasses, mosses, and lichens. Scattered trees grow in some tundra regions. The ecotone (or ecological boundary region) between the tundra and the forest is known as the tree line or timberline., An airliner is a type of aircraft for transporting passengers and air cargo. Such aircraft are most often operated by airlines. Although the definition of an airliner can vary from country to country, an airliner is typically defined as an aircraft intended for carrying multiple passengers or cargo in commercial service., The muskox ("Ovibos moschatus"), also spelled musk ox and musk-ox, in Inuktitut , is an Arctic mammal of the family Bovidae, noted for its thick coat and for the strong odor emitted during the seasonal rut by males, from which its name derives. Its Inuktitut name "umingmak" translates to "the bearded one." This musky odor is used to attract females during mating season. Muskoxen primarily live in the Canadian Arctic and Greenland, with small introduced populations in Sweden, Siberia, Norway, and Alaska., Narsarsuaq Airport is an airport located in Narsarsuaq, a settlement in the Kujalleq municipality in southern Greenland. Along with Kangerlussuaq Airport, it is one of two airports in Greenland capable of serving large airliners. It is also the only international airport in southern Greenland. The settlement it serves is small, with the airport primarily functioning as a transfer point for passengers heading for the helicopter hubs of Air Greenland in Qaqortoq and Nanortalik., Keflavík (pronounced , meaning "Driftwood Bay") is a town in the Reykjanes region in southwest Iceland. As of 2016, its population when combined with the nearby town Njarðvík, is 15,129., An island country is a country whose primary territory consists of one or more islands or parts of islands. As of 2011, 46 (approximately 24%) of the 193 UN member states are island countries., A lava field, also called a lava plain or lava bed, is a large expanse of nearly flat-lying lava flows. Such features are generally composed of highly fluid basalt lava, and can extend for tens or even hundreds of miles across the underlying terrain. The extent of large lava fields is most readily grasped from the air or in satellite photos, where their typically dark, nearly black color contrasts sharply with the rest of the landscape.
According to the US Geological Survey, monogenetic volcanic fields are collections of cinder cones, and/or Maar vents and associated lava flows and pyroclastic deposits. Sometimes a stratovolcano
is at the center of the field, as at the San Francisco Volcanic Field in Arizona. Monogenetic volcano fields have systematic growth patterns that suggest they represent single magmatic systems in the same way that stratovolcanoes do, but monogenetic volcanoes grow laterally rather than vertically (Wood and Shoan, 1984). Detailed mapping indicates that some cinder cones in monogenetic fields (e.g., Cima, California, and Timber Mountain Volcanic Field, Nevada) may have had multiple eruptions separated by tens to hundreds of thousands of years (Wells, et al., 1989). Thus, some monogenetic cones may actually be polygenetic. This possibility differs from observations of historic eruptions (Wood, 1979), and is physically difficult to understand because cinder cone conduits are narrow and must solidify within a few years of eruption. Nonetheless, such multiple eruptions appear to have happened at least twice: Other cinder cones need to be closely reexamined., The Republic of Iceland, "Lýðveldið Ísland" in Icelandic, is a Nordic island country in the North Atlantic Ocean. It has a population of and an area of , making it the most sparsely populated country in Europe. The capital and largest city is Reykjavík. Reykjavík and the surrounding areas in the southwest of the country are home to over two-thirds of the population. Iceland is volcanically and geologically active. The interior consists of a plateau characterised by sand and lava fields, mountains and glaciers, while many glacial rivers flow to the sea through the lowlands. Iceland is warmed by the Gulf Stream and has a temperate climate, despite a high latitude just outside the Arctic Circle. Its high latitude and marine influence still keeps summers chilly, with most of the archipelago having a tundra climate., A HELIPORT by definition is an area of land, water, or structure used or intended to be used for the landing and takeoff of helicopters and includes its buildings and facilities if any. In other words it is a small airport suitable for use by helicopters and some other vertical lift platforms. Designated heliports typically contain one or more Touchdown and Liftoff Area and may also have limited facilities such as fuel or hangars. In some larger towns and cities, customs facilities may also be available., Lava is the molten rock expelled by a volcano during an eruption. The resulting rock after solidification and cooling is also called "lava". The molten rock is formed in the interior of some planets, including Earth, and some of their satellites. The source of the heat that melts the rock within the earth is geothermal energy. When first erupted from a volcanic vent, lava is a liquid usually at temperatures from . , A fixed-wing aircraft is an aircraft, such as an aeroplane, which is capable of flight using wings that generate lift caused by the vehicle's forward airspeed and the shape of the wings. Fixed-wing aircraft are distinct from rotary-wing aircraft, in which the wings form a rotor mounted on a spinning shaft, and ornithopters, in which the wings flap in similar manner to a bird., Reykjavík  is the capital and largest city of Iceland. It has a latitude of 64°08' N, making it the world's northernmost capital of a sovereign state, and is a popular tourist destination. It is located in southwestern Iceland, on the southern shore of Faxa Bay. With a population of around 130,000 (and over 200,000 in the Capital Region), it is the heart of Iceland's cultural, economic and governmental activity., World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World War II the deadliest conflict in human history., Air Greenland A/S, also known as Greenlandair, is the flag carrier airline of Greenland, a subsidiary of the SAS Group, owned by the SAS Group, the Greenlandic Government and the Danish Government. It operates a fleet of 32 aircraft, including 1 airliner used for transatlantic and charter flights, 9 fixed-wing aircraft primarily serving the domestic network, and 22 helicopters feeding passengers from the smaller communities into the domestic airport network. Flights to heliports in the remote settlements are operated on contract with the government of Greenland., Nuuk Airport ( Greenlandic : Mittarfik Nuuk ; Danish : Godthåb Lufthavn ; ( IATA : GOH , ICAO : BGGH ) ) is an airport in Nuuk , the capital of Greenland . The airport is a technical base and focus city for Air Greenland , the flag - carrier airline of Greenland , linking the capital with several towns in western and south - western part of the country , including the airline hub at Kangerlussuaq Airport . With connections to Iceland , Nuuk Airport is also one of 6 international airports in Greenland but serves only destination within Greenland and Iceland . International connections are made with flights to either Keflavík International Airport in Iceland or Kangerlussuaq Airport . In the early 1960s , water planes of the newly established Air Greenland landed in Nuuk Port . In 1965 , the airline invested in developing a more robust fleet based on the large Sikorsky S - 61 helicopter , which continued to serve the town for the next four decades , even after the construction of an airport in Nuuk capable of serving the short takeoff and landing de Havilland Canada Dash - 7 aircraft , which dominated at the airport since the 1970s . The airport was constructed to serve the largest town in Greenland , yet due to space constraints at the location in a mountainous area and problems with the weather , it is unable to service large airliners or flights reaching Denmark . A large expansion of the airport is not an acceptable option also due to the approach over the urbanized area of the outlying districts of Nuuk , although the issue continues to be a subject of internal debate in Greenland ., Bluie was the United States military code name for Greenland during World War II. It is remembered by the numbered sequence of base locations identified by the 1941 United States Coast Guard South Greenland Survey Expedition, and subsequently used in radio communications by airmen unfamiliar with pronunciation of the Inuit and Old Norse names of those locations. These were typically spoken BLUIE (direction) (number), with direction being east or west along the Greenland coast from Cape Farewell., The Gulf Stream, together with its northern extension towards Europe, the North Atlantic Drift, is a powerful, warm, and swift Atlantic ocean current that originates in the Gulf of Mexico and stretches to the tip of Florida, and follows the eastern coastlines of the United States and Newfoundland before crossing the Atlantic Ocean. The process of western intensification causes the Gulf Stream to be a northward accelerating current off the east coast of North America. At about , it splits in two, with the northern stream, the North Atlantic Drift, crossing to Northern Europe and the southern stream, the Canary Current, recirculating off West Africa., Qeqqata ("Center") is a new municipality in western Greenland, operational from 1 January 2009. The municipality was named after its location in central-western part of the country. Its population is 9,620 as of January 2013. The administrative center of the municipality is in Sisimiut (formerly called Holsteinsborg). It consists of the previously unincorporated area of Kangerlussuaq, as well as two former municipalities of western Greenland:, Inuit (pronounced or ; Inuktitut: , "the people") are a group of culturally similar indigenous peoples inhabiting the Arctic regions of Greenland, Canada and Alaska. Inuit is a plural noun; the singular is Inuk. The oral Inuit languages are classified in the Eskimo-Aleut family. Inuit Sign Language is a critically endangered language isolate spoken in Nunavut., Scandinavian Airlines System Aktiebolag, trading as SAS Group and SAS AB, is an airline holding company headquartered in the SAS Frösundavik Office Building in Solna Municipality, Sweden. It is the owner of the airlines Scandinavian Airlines, Blue1 and 20% of Widerøe. SAS used to own 19.9% of the now defunct Spanish airline Spanair. It also owns the aviation services companies SAS Business Opportunities, SAS Cargo Group, SAS Ground Services, and SAS Technical Services. It holds minority ownership of Air Greenland, Estonian Air, and Skyways Express. SAS Group is partially owned by the governments of Sweden, Denmark, and Norway, with a 21.4%, 14.3%, and 14.3% ownership, respectively. The remaining 50% is held by private owners, of which Foundation Asset Management at 7.6% is the only significant one. The company is listed on the Oslo Stock Exchange, the Stockholm Stock Exchange, and the Copenhagen Stock Exchange., The Arctic (or ) is a polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Alaska (United States), Canada, Finland, Greenland (Denmark), Iceland, Norway, Russia, and Sweden. Land within the Arctic region has seasonally varying snow and ice cover, with predominantly treeless permafrost-containing tundra. Arctic seas contain seasonal sea ice in many places., Greenland  is an autonomous constituent country within the Danish Realm between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago. Though physiographically a part of the continent of North America, Greenland has been politically and culturally associated with Europe (specifically Norway and Denmark, the colonial powers, as well as the nearby island of Iceland) for more than a millennium. The majority of its residents are Inuit, whose ancestors migrated began migrating from the Canadian mainland in the 13th century, gradually settling across the island., Sermersooq ("Place of Much Ice") is a new municipality in Greenland, operational from 1 January 2009. It is home to Nuuk (formerly called Godthåb), the capital of Greenland, and is the most populous municipality in the country, with 21,868 inhabitants as of January 2013. The municipality consists of former municipalities of eastern and southwestern Greenland, each named after the largest settlement at the time of formation:, The Danish Realm is a realm comprising Denmark proper, The Faroe Islands and Greenland. , Europe is a continent that comprises the westernmost part of Eurasia. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. To the east and southeast, Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways of the Turkish Straits. Yet the non-oceanic borders of Europea concept dating back to classical antiquityare arbitrary. The primarily physiographic term "continent" as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent's current overland boundaries., Kangerlussuaq,, is a settlement in western Greenland in the Qeqqata municipality located at the head of the fjord of the same name. It is Greenland's main air transport hub and the site of Greenland's largest commercial airport. The airport dates from American settlement during and after World War II, when the site was known as Bluie West-8 and then Sondrestrom Air Base. The Kangerlussuaq area is also home to Greenland's most diverse terrestrial fauna, including muskoxen, caribou, and gyrfalcons. The settlement's economy and population of 499 is almost entirely reliant on the airport and tourist industry., The Canadian Arctic Archipelago, also known as the Arctic Archipelago, is a group of islands north of the Canadian mainland., Iqaluit is the capital of the Canadian territory of Nunavut; its largest community, and its only city. Until 1987, the city was known as Frobisher Bay, after the large bay on the coast of which the city is situated. In 1999, Iqaluit became the capital of Nunavut after the division of the Northwest Territories into two separate territories. Before this event, Iqaluit was (relatively speaking) an insignificant city and not well-known outside of the Canadian Arctic or Canada, with population and economic growth highly limited. This is due to the city's isolation and heavy dependence on expensively imported supplies as the city, like the rest of Nunavut, has no road, rail, or even ship connections for part of the year to the rest of Canada. The city also possesses a polar climate, influenced by the cold deep waters of the Labrador Current just off Baffin Island; this makes the city of Iqaluit cold, even though the city is well south of the Arctic Circle., Canada (French: ) is a country in the northern half of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering , making it the world's second-largest country by total area and the fourth-largest country by land area. Canada's border with the United States is the world's longest land border. The majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its land territory being dominated by forest and tundra and the Rocky Mountains. About four-fifths of the country's population of 36 million people is urbanized and live near the southern border. Its capital is Ottawa, its largest city is Toronto; other major urban areas include Montreal, Vancouver, Calgary, Edmonton, Quebec City, Winnipeg and Hamilton., Keflavík International Airport , also known as Reykjavík-Keflavík Airport, is the largest airport in Iceland and the country's main hub for international transportation. The airport is west of Keflavík and southwest of Reykjavík. The airport has three runways, two of which are in use, and the airport area is about . Most international journeys to or from Iceland pass through this airport., Norway (; Norwegian: (Bokmål) or (Nynorsk); Sami: "Norgga"), officially the Kingdom of Norway, is a sovereign and unitary monarchy whose territory comprises the western portion of the Scandinavian Peninsula plus the island Jan Mayen and the archipelago of Svalbard. The Antarctic Peter I Island and the sub-Antarctic Bouvet Island are dependent territories and thus not considered part of the Kingdom. Norway also lays claim to a section of Antarctica known as Queen Maud Land. Until 1814, the Kingdom included the Faroe Islands (since 1035), Greenland (1261), and Iceland (1262). It also included Shetland and Orkney until 1468. It also included the following provinces, now in Sweden: Jämtland, Härjedalen and Bohuslän., A subsidiary, subsidiary company or daughter company is a company that is owned or controlled by another company, which is called the "parent company", "parent", or "holding company". The subsidiary can be a company, corporation, or limited liability company. In some cases it is a government or state-owned enterprise., North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be considered a northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea., AirPort is the name given to a series of products by Apple Inc. using the (Wi-Fi) protocols (802.11b, 802.11g, 802.11n and 802.11ac). These products comprise a number of wireless routers and wireless cards. The AirPort Extreme name was originally intended to signify the addition of the 802.11g protocol to these products., Nuuk is the capital and largest city of Greenland. It is the seat of government and the country's largest cultural and economic centre. The major cities closest to the capital are Iqaluit and St. John's in Canada and Reykjavík in Iceland. Nuuk contains almost a quarter of Greenland's population, and also has the tallest building in Greenland. Nuuk is the seat of government for the Sermersooq municipality. In January 2016, it had a population of 17,316, making it one of the smallest capital cities in the world by population., Sondrestrom Air Base, originally Bluie West-8, was a U.S. air base in central Greenland. The site is located north of the Arctic Circle and from the northeast end of Kangerlussuaq Fjord, formerly known by its Danish name Søndre Strømfjord. The base is approximately west-northwest of Ravneklippen and east of Sisimiut., A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of VTOL (vertical takeoff and landing) aircraft cannot perform., Kangerlussuaq Airport is an airport in Kangerlussuaq, a settlement in the Qeqqata municipality in central-western Greenland. Alongside Narsarsuaq Airport, it is one of only two civilian airports in Greenland large enough to handle large airliners. It is located away from the coast and hence less prone to fog and wind in comparison with other airports in Greenland. Kangerlussuaq Airport is the international hub for Air Greenland. The Kangerlussuaq area has very few inhabitants, around 500, so few passengers have their origin or destination here. Most passengers change planes., Subject: nuuk airport, Relation: located_in_the_administrative_territorial_entity, Options: (A) africa (B) alaska (C) alpine (D) antarctica (E) arizona (F) atlantic ocean (G) canada (H) capital region (I) caribbean (J) center (K) central (L) denmark (M) earth (N) edmonton (O) enterprise (P) europe (Q) faroe islands (R) greenland (S) gulf (T) gulf of mexico (U) hamilton (V) härjedalen (W) iceland (X) jämtland (Y) keflavík (Z) kujalleq municipality ([) mainland (\) mountain (]) newfoundland (^) north (_) north america (`) northern (a) northwest (b) norway (c) nunavut (d) of (e) oral (f) plain (g) qeqqata municipality (h) rock (i) russia (j) san francisco (k) sermersooq municipality (l) siberia (m) solna municipality (n) south (o) southwest (p) stockholm (q) sweden (r) time (s) toronto (t) west
Output: sermersooq municipality