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Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the moon and the sun and the rotation of the Earth. This paper will explain the way tides work, the different types of tides, and the causes of tides.

Tides work in systematical ways! They start by the wind pushing the water so that it rolls over itself. once the waves get big enough force, it causes the waves to become very,very large in height and also length. During the day, the Earth rotates 180 degrees in 12 hours. The moon rotates 6 degrees around the earth in 12 hours. The two bulges and the moon's rotation mean that at any time a coastal city gets a high tide about every 12 hours and 25 minutes.

There are many different types of tides. Two specific tides are spring and neap tides. Spring tides are tides that occur during full moons and new moons. Neap tides occur during the quarter moons. There are also two different very common tides. Those tides would be high and low tides. There are two high tides and two low tides each day. Here’s an example: If your on the coast and the moon is directly over your head, you should experience a high tide. If the moon is directly over your head on the opposite side of the planet, you should also experience a high tide. Other tides that are experienced are mixed tides is an incoming tidal flow is known as a flood current or flood tide. An outgoing flow is an ebb current or ebb tide, when there is little or no current it is a slack water or slack tide.

An indirect but very powerful affect tides have on humans is in sea life.Many different kinds of sea life, especially those that live on the shore, depend on the changing tide for life or survival. The movements of the tides affect on how we harvest for the food us humans get, like fish and other sea creatures. The tides push all of the sea creatures in toward us with every movement of the water. The tides also affect the beaches themselves. With

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