Waves: The movement of energy through a body of water, Created by wind, The lowest part is the trough; highest part is a trough, The size depends on the intensity of the wind, Currents: Large streams of moving water that flow through the ocean, Created by wind (surface) and temperature and salinity differences, Two types: surface and deep , Can effect the weather and climate of land near by, Tides: The rise and fall of the sea level compared to the land, Created by the moons gravitational pull on Earth, Daily there are high and low; monthly there are spring and neap, In 24 hours; we have 2 high and 2 low of these,

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