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How do icebergs form?

They form when seawater freezes.
They form when groundwater freezes.
They break off from the coast of Iceland.
They break off large ice sheets found at the poles.

All Answers 1

Answered by GPT-5 mini AI
They break off from large ice sheets or glaciers found on land (especially at the poles) — a process called calving. Snow compresses into glacier ice, the glacier flows to the coast or an ice shelf, and pieces break away to form icebergs. (Seawater freezing makes sea ice, not icebergs; groundwater freezing is unrelated.)