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- Master & Chief Mate (Oceans or Near Coastal (Offshore Supply Vessel)) »
- Q204 - Navigation General: Oceans
22. The average height of the surface of the sea for all stages of the tide over a 19 year period is known by which term?
Mean sea level is the average height of the sea surface over a 19-year period, encompassing all tidal stages, making it the correct answer.
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