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

Question

Quizplus · Accepted Answer

When waves crash against a sea cliff, the main process that erodes the cliff is the force of the waves, which can force water or air into cracks, dislodging rocks from the cliff. This process is known as hydraulic action or wave quarrying. Over time, repeated wave action can cause significant erosion of the cliff face. Other processes, such as abrasion and landslides, may also contribute to the erosion of the cliff, but hydraulic action is the primary process.

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