Question

When Jane visits a beach, she notices a sea stack has formed offshore. Which of the following best describes what caused the sea stack to form?

Erosion hollowed out the rock in a seaside cliff.

Deposition moved sand from the beach into an offshore pile.

A large number of shells were carried out to sea by the waves.

Water levels rose until the sea completely surrounded a rocky section of beach.

Answer 1

deposition moved sand from beach

Answer 2

Deposition moved sand from the beach into an offshore pile.

Answer 3

The answer is: Erosion hollowed out the rock in a seaside cliff.

Sea stacks are vertical rock formations standing in the sea that were formed entirely by wind and water. The formation process usually begins when the sea creates cracks in the headland, causing them to later collapse, and forming free-standing stacks. Eventually, the same process that created the sea stacks will also cause them to collapse.