The low-water position corresponding to a tidal trough is called

• A. High Tide
• B. Meteorological Tide
• C. Low Tide
• D. Lunar Tide

Answer: (C)

Tides alternate between a highest water level and a lowest water level. The lowest point corresponds to the trough of the tide, so the water at its minimum is called low tide. High tide is the opposite maximum water level. Meteorological tide refers to sea level changes driven by atmospheric conditions rather than the gravitational pull that creates the regular tides, and a lunar tide is the tidal effect produced by the Moon’s gravity. Therefore, the low-water position associated with the trough is low tide.