Question

1. which process leads to the formation of icebergs?

a. erosion of ice shelves
b. expansion of pack ice
c. iceberg calving
d. freezing rain over the ocean

Explanation:

To determine the process forming icebergs:

• Option a: Erosion of ice shelves doesn’t form icebergs (erosion is wear, not detachment).
• Option b: Pack ice expansion (sea ice growth) isn’t iceberg formation.
• Option c: Iceberg calving is when chunks break off glaciers/ice shelves, forming icebergs.
• Option d: Freezing rain over ocean forms sea ice, not icebergs.

Answer:

c. Iceberg calving