Which term defines the difference between the heights of low and high tides?
• High tide vs. low tide – what is actually changing? • Standard tidal terminology used on nautical charts and tide tables • The difference between a time interval and a vertical height
• Ask yourself: Is the question asking about a change in water level (height) or a change in time between tides? • Look at each term and decide: Does it describe a vertical measurement, a time span, or something else? • When you read tide tables, what single term is used to describe how much higher high tide is than low tide?
• Identify which choice clearly refers to a vertical height difference between two tide levels. • Eliminate any option that describes time instead of height. • Consider which term you actually see printed on tide tables and tidal curves to show the vertical difference between high and low water.
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