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23 mar 2024 · Study with Quizlet and memorize flashcards containing terms like Continental Ice Sheets, greenland, Icebergs and more.
Study with Quizlet and memorize flashcards containing terms like Ice Sheet, Ice Stream, Ice Shelf and more.
Study with Quizlet and memorize flashcards containing terms like What is a glacier?, What are the two major types of glaciers?, Which (continental ice sheets or mountain glaciation) are larger? and more.
10 lis 2023 · An ice sheet is a mass of glacial ice more than 50,000 square kilometers (19,000 square miles). Ice sheets contain about 99% of the fresh water on Earth, and are sometimes called continental glaciers. As ice sheets extend to the coast and over the ocean, they become ice shelves.
An ice sheet is a mass of glacial land ice, extending more than 50,000 square kilometers (20,000 square miles). Ice sheets can cover underlying canyons and mountain ranges. During the last ice age, ice sheets also covered much of North America and Scandinavia.
Ice sheets contain enormous quantities of frozen water. If the Greenland Ice Sheet melted entirely, scientists estimate that sea level would rise about 7.4 meters (23 feet). If the Antarctic Ice Sheet melted, sea level would rise by about 60 meters (200 feet).
Scientists extract ice cores from glaciers, ice sheets, and ice caps, studying them to learn about past changes in Earth's climate. Ice sheets are made up of layers of ice that formed from snow and collected over thousands to millions of years.
