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Tides, the periodic rise and fall in the levels of large bodies of water, are the product of gravitational forces. They result from the interaction of the Earth with both the sun and the moon, though the moon is the most significant influence year round.


The moon's gravitational force pulls water towards it, creating a high tide on the surface of the ocean closest to the moon. Also, the centrifugal force created by the Earth and moon orbiting around a central point creates a similar bulge on the opposite side, creating ...


The Fitzgerald Marine Reserve near Half Moon Bay, Calif. is an easily accessible part of the coastline. The Fitzgerald Marine Reserve borders the Gulf of the Farallones National Marine Sanctuary and is home to the Montara State Marine Reserve.


Tides, which are rising and falling sea levels, are caused by the effects of gravitational forces of the moon and sun combined with the Earth's rotation. Tidal magnitudes are affected by shoreline shape, the shape of bodies of water and environmental factors.


Tides form when the gravitational forces of the moon and sun act on the Earth as it spins around its axis. Tides are the rise and fall of the sea level in reference to land. For example, spring tides are the result of the alignment of the sun, moon and Earth that typica...


According to the National Oceanic and Atmospheric Administration, the tides are caused by the gravitational force that pulls on the water and the forces exerted by the moon and the sun. The gravitational pull of the moon cause the ocean to bulge out in its direction, wh...


Tides are formed by a combination of gravitational attraction from the moon and the sun, as well as the centrifugal force generated by the rotation of the Earth. The position of both celestial bodies affects the surface height of the tides as water is gravitationally pu...