Which term describes the rapid, high-energy impact waves have on shore organisms?

Prepare for the IB Marine Science SL Exam. Use flashcards and multiple-choice questions with detailed explanations. Master marine ecosystems, ocean currents, and biological resources for success!

Multiple Choice

Which term describes the rapid, high-energy impact waves have on shore organisms?

Explanation:
The main idea here is the immediate, high-energy force that breaking waves exert on organisms living along the shore. That rapid impact is best described as wave shock. When a wave breaks, it shoots a surge of water and air at high speed, delivering a sudden load that organisms must resist or suffer damage, dislodgement, or desiccation stress. Wave run-up refers to how far the water climbs up the shore after a wave breaks, not the instantaneous force itself. Tidal range is about the difference between high and low tides over a tidal cycle, and littoral drift is the alongshore transport of sediment due to longshore currents. These describe other coastal processes, not the sudden impact on shore organisms.

The main idea here is the immediate, high-energy force that breaking waves exert on organisms living along the shore. That rapid impact is best described as wave shock. When a wave breaks, it shoots a surge of water and air at high speed, delivering a sudden load that organisms must resist or suffer damage, dislodgement, or desiccation stress.

Wave run-up refers to how far the water climbs up the shore after a wave breaks, not the instantaneous force itself. Tidal range is about the difference between high and low tides over a tidal cycle, and littoral drift is the alongshore transport of sediment due to longshore currents. These describe other coastal processes, not the sudden impact on shore organisms.

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