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1. en.wikipedia.org › wiki › Polar_regions_of_EarthPolar regions of Earth - Wikipedia

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   4 giorni fa · The polar regions, also called the frigid zones or polar zones, of Earth are Earth's polar ice caps, the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles.

2. en.wikipedia.org › wiki › Polar_circlePolar circle - Wikipedia

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   4 giorni fa · A polar circle is a geographic term for a conditional circular line (arc) referring either to the Arctic Circle or the Antarctic Circle. These are two of the keynote circles of latitude (parallels).

3. en.wikipedia.org › wiki › Polar_bearPolar bear - Wikipedia

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   4 giorni fa · The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed. The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb).

4. polarresearch.netPolar Research

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   5 lug 2024 · Polar Research is the international, peer-reviewed journal of the Norwegian Polar Institute, Norway's central institution for research, environmental monitoring and mapping in the polar regions.

5. www.britannica.com › animal › polar-bearPolar bear | Description, Habitat, & Facts | Britannica

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   5 giorni fa · polar bear, (Ursus maritimus), great white northern bear (family Ursidae) found throughout the Arctic region. The polar bear travels long distances over vast desolate expanses, generally on drifting oceanic ice floes, searching for seals, its primary prey.

   • Autore: The Editors of Encyclopaedia Britannica

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6. brilliant.org › wiki › polar-curvesPolar Curves | Brilliant Math & Science Wiki

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   3 giorni fa · A polar curve is a shape constructed using the polar coordinate system. Polar curves are defined by points that are a variable distance from the origin (the pole) depending on the angle measured off the positive \(x\)-axis.

7. www.britannica.com › place › ArcticArctic - Polar, Tundra, Climate | Britannica

   www.britannica.com › place › Arctic

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   3 giorni fa · Arctic - Polar, Tundra, Climate: The climates of polar lands vary greatly depending on their latitude, proximity of the sea, elevation, and topography, but, even so, they all share certain “polar” characteristics. Owing to the high latitudes, solar energy is limited to the summer months.