Question

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.

Answer 1

Icebergs form when large ice sheets or glaciers, primarily found in polar regions, break off (calve) and float into the ocean. This process typically occurs when the glacier reaches the water's edge, and large chunks of ice break away due to various factors, including melting, warming temperatures, or structural weaknesses in the ice. The correct answer is: **They break off large ice sheets found at the poles.**