What parts of Earth have the weakest tide?



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    Since tides are caused by the gravitational pull of the moon and the sun on the Earth, the strength of the tides changes periodically and depends on the orientation of the planet, not on the tides’ location on it. Basically, water on the earth’s surface swells up into two bulges: one on the side of the earth nearest the moon and one on the side farthest from the moon. As the earth turns, these bulges move across its surface and this movement is responsible for the tides. As the moon and sun adopt different arrangements around the earth, the strengths of the tides vary. The strongest tides (spring tides) occur when the moon and sun are on the same or opposite sides of the earth. The weakest tides (neap tides) occur when the moon and sun are at 90° from one another.

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