高普考題庫
110 年 110年公務人員高等考試三級考試暨普通考試・法學知識與英文(包括中華民國憲法、法學緒論、英文)
How an iceberg travels across the sea is sometimes unpredictable. When an iceberg breaks off from a glacier, itcan46for thousands of miles, traveling freely across the open ocean. But last week, an iceberg’s journey wasinterrupted when it got stuck on a47part of the seafloor along Greenland’s western coast. In other words, the icebergwas grounded—and it had48itself right beside the small island village of Innaarsuit. Such grounded icebergs areactually pretty common, says Fiamma Straneo, who has traveled about 20 times to Greenland’s ice sheet for her work atthe Scripps Institution of Oceanography at UC San Diego. What’s unique about the iceberg by Innaarsuit is both its sizeand its49to the village. A grounded iceberg experiences ocean water pushing at it in one direction and the seafloorpushing in another—a50that makes it easy for limbs to break off with a splash that can rock boats or flood coasts.The iceberg might even do an entire somersault in the water. Across the world, from the Canadian Arctic to Patagonia inArgentina, that shedding is both a tourist attraction and an issue of concern. The larger the iceberg, the larger the wavesit causes if it breaks apart.
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