Question

1. which process describes the breaking off of ice from a glacier’s edge?

a. permafrost thawing
b. snow accumulation
c. ice pack formation
d. iceberg calving

Explanation:

To solve this, we analyze each option:

• Option a: Permafrost thawing refers to the melting of permanently frozen ground, not ice breaking from glaciers.
• Option b: Snow accumulation is the buildup of snow, not ice breaking off glaciers.
• Option c: Ice pack formation involves ice forming in packs (like in oceans), not breaking from glaciers.
• Option d: Iceberg calving is the process where ice breaks off from a glacier's edge (or ice shelf) to form icebergs. This matches the description.

Answer:

d. Iceberg calving