Glaciers are large, thick masses of ice that form on land when fallen snow gets compressed into ice over many centuries.
5 - 8
Conservation, Earth Science, Climatology
Hikers on Glacier
Glaciers are masses of snow that has been compressed into giant sheets of ice. Most glaciers were formed during the last ice age.
Photograph by James L. Amos/National Geographic Creative
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May 20, 2022
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