When waves crash against a sea cliff,what is the main process that erodes the cliff?
A)abrasion by rocks flung against the cliff by the waves
B)water flowing upward against the cliff,washing the cliff face of loose debris
C)hydraulic pressure driven by the waves forcing water,air,or both into cracks,dislodging rocks from the cliff
D)impact of the wave causing vibrations that trigger landslides

Question

Quizplus · Accepted Answer

Hydraulic pressure is the main process that erodes the cliff when waves crash against it. The force of the waves pushes water, air, or both into cracks in the cliff, which can dislodge rocks and cause further erosion. Abrasion by rocks and landslides may also contribute to the erosion but they are not the main processes. Water flowing upward against the cliff is not a common process as water generally flows downward due to gravity.

When Waves Crash Against a Sea Cliff,what Is the Main