what are the major underwater features of the ocean?
The Lomonosov Ridge underwater divides  the deep sea North Polar Basin into the Eurasian Basin and the Amerasian Basin.
Arctic Ocean
An underwater ridge, the Lomonosov Ridge, divides the deep sea North Polar Basin into two oceanic basins: the Eurasian Basin, which is between deep, and the Amerasian Basin (sometimes called the North American, or Hyperborean Basin), which is about deep
where did the polar bear live with her family Within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. what is its food? Its diet primarily consists of ringed and bearded seals. is it flexible with food? Yes, they also eat muskox, reindeer, and even plants like berries, roots, and kelp. is it used a mascot? Yes, it is seen on the Canadian two-dollar coin, vehicle licence plates in the Northwest Territories in Canada, and it is the mascot of Bowdoin College, Maine. is there any peculiar phenomenon related to sun in the circle where these animals are found? Yes, the midnight sun - the centre of the sun is visible at local midnight, and polar night - the centre is not visible at local noon. is the area inhabited by humans? Yes, only four million people live here, indigenous people make up 10%.
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Arctic Ocean [SEP] Underwater features
An underwater ridge, the Lomonosov Ridge, divides the deep sea North Polar Basin into two oceanic basins: the Eurasian Basin, which is between deep, and the Amerasian Basin (sometimes called the North American, or Hyperborean Basin), which is about deep. The bathymetry of the ocean bottom is marked by fault block ridges, abyssal plains, ocean deeps, and basins. The average depth of the Arctic Ocean is . The deepest point is Molloy Hole in the Fram Strait, at about . The two major basins are further subdivided by ridges into the Canada Basin (between Alaska/Canada and the Alpha Ridge), Makarov Basin (between the Alpha and Lomonosov Ridges), Amundsen Basin (between Lomonosov and Gakkel ridges), and Nansen Basin (between the Gakkel Ridge and the continental shelf that includes the Franz Josef Land).