Current-water or another fluid moving in a specific

Tide-the rising and falling of the ocean syrface due to the defferent gravitational puuls of the sun and moon

Tsunami- large ocean wave caused by earth movement or a volcanic eruption on the ocean floor

System-a cambination of interacting or interdependent parts that from a unified whole

Seamount- an underwater mountain

Basin-a natural depression in the ground where water can gather

Erosion-a natural depression in the ground where water can gather

Runoff-water flowing along the surface of the ground

Gyre-the circular flow of ocean water composed of several major currents

Diversity-a measure of the number of different types of organanisms in an area

Fresh water-water that contains a low concentration of dissolved salts

Water cycle-the movement of water as in changes state around Earth

Water table- the upper boundary of saturated zone

Overturn-mixing of the upper and lower lever of a body of water, usually caused by convection currents

Salinity-the concentration, or amount, of dissolved salts in water

Glacier-material such as sand,silt and mud that is carried and deposited by wind water,or ice

Tidal range the deference between water level at high tide and low tide


Irrigation- the watering of crops by diverting water from a river lake or undergroumd water source

Ground water-water that has soaked into the eath often between saturated soil and rock