Explanation:

- Option 1: Fall

- "Fall" generally refers to the movement downward or a drop in level.

- In this context, "fall" does not describe the rhythmic pattern of ocean water.

- Option 2: Tide

- Tides are the rhythmic rise and fall of sea levels caused by the gravitational forces of the moon and the sun.

- They occur twice daily, usually with two high tides and two low tides.

- Option 3: Wave

- Waves are generated by the wind blowing over the sea's surface.

- They are different from tides in that they are much shorter and more frequent motions.

- Option 4: Current

- Currents are large-scale flows of water through the oceans.

- They are not caused by gravitational forces but by various factors like wind, water density differences, and the Earth's rotation.