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.

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.

anonymous · Answer

Okay! so: "A stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast, isolated by erosion." 

The best choice seems like it'd be A. What do yout hink?

anonymous · Answer

Yes that looks like it makes the most sense. Thank you!!