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 and 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
Zhang refers to his business as a _______________. Passage: When asked why he decided to start a construction company, Zhang replies, 'It's not a construction company. It's a structural revolution.'
structural revolution
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