For thousands of years they had to rely on catching ________ and _________ as a means of sustenance. Passage: Humans first settled in the Arctic a mere 4,500 years ago, surviving by exploiting sea mammals and fish.
sea mammals, fish
The territory of Nunavut consists of little more than ice, rock and a few _________ . Passage: Nunavut is 1.9 million square kilometers of rock and ice, and a handful of islands around the North Pole.
islands
In recent years, many of them have been obliged to give up their ________ lifestyle, but they continue to depend mainly on ____________ for their food and clothes.
normadic ways
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