Which of the following statements about glaciers is true? A. A single alpine glacier covers the island of Greenland.
B. Alpine glaciers are usually larger than continental glaciers.
C. Continental glaciers cover immense areas of land.
D. All of these choices are correct.

The correct answer is D.

Glaciers fall into two groups: alpine glaciers and ice sheets. Alpine glaciers form on mountainsides and move downward through valleys. The largest ice sheets, called continental glaciers, spread over vast areas. Today, continental glaciers cover most of Antarctica and the island of Greenland.

Explanation:

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