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| a mass movement, or flow, of ocean water |
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| 1. When the wind blows across a body of water, friction between the water and air causes the water to move |
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| Move only the upper few hundred meters of seawater |
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| ii. Because Earth rotates east, winds appear to curve right in the N. hemisphere & left in the S. hemisphere |
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| Used for quick transportation in the colonial times from America to England |
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| Contains high nutrients that promote life |
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| deep water circulate b/c of difference in densities |
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| if the salt content is increased |
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| warm water ___ cold water |
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| The _________the density, the more it sinks |
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| has the densest currents of all |
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| a rhythmic movement that carries energy through matter or space. |
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| the highest point of the wave |
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| the lowest point of the wave |
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| the horizontal distance between the crests or between two adjacent troughs. |
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| the vertical distance between crest and trough |
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| half the distance of the wave height |
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| Only energy moves ____________while the water stays in the same place |
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| When the crest of the wave outruns the trough, the water tumbles over itself and breaks |
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| When a wave breaks and then rushes up the beach, it leaves the water on the beach with excess energy; returning flow of water tends to go under the sea's surface. |
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| fast moving current that's difficult to stand still against |
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| ______________causes the water to move along with the wind |
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| the rise and fall in sea level |
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| Caused by the gravitational pull of the Sun and Moon |
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| the difference between the level of the ocean at high tide and low tide. |
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| a wall of water that moves up certain low-lying rivers due to an incoming tide |
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| caused when Sun-Earth-Moon are lined up; the high tides are higher than normal |
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| when the Sun-Earth-Moon are at right angles; high tides are lower than normal |
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