Concept:The tidal range is the vertical difference between the high tide and the low tide at a given place.
Explanation:Tides are the periodic rise and fall of sea levels caused by the gravitational pull of the Moon and the Sun, together with Earth's rotation.
As the tide rises, the water reaches its highest level, which is called high tide.
As the tide falls, the water drops to its lowest level, which is called low tide.
The vertical distance between the high tide level and the low tide level is known as the tidal range.
A tidal gauge is an instrument used to measure water levels, not the difference between tides.
Tidal height refers to the actual water level at a specific time.
Tidal flow describes the horizontal movement of tidal water.
Therefore, the correct term for the difference between high tide and low tide is tidal range.
Answer:C. Tidal range