Question 1: What process causes a glacier piece to break into the sea?
A. Calving
B. Shearing
C. Slumping
Calving is when chunks of ice break off a glacier or ice shelf, forming icebergs that then drift in the ocean.
Correct Answer: Calving
Question 2: Which shape type fits an eroded ice arch in Antarctica?
A. Tabular
B. Non-tabular
C. Lenticular
Eroded iceberg arches fall into the non-tabular classification due to their irregular and sculpted shapes.
Correct Answer: Non-tabular
Question 3: What organism supports Antarctic food chains on icebergs?
A. Algae
B. Barnacles
C. Kelp
Algae grow beneath icebergs, feeding krill that support a complex food chain including fish, seals, and whales.
Correct Answer: Algae