Surface currents that result from a balance between a pressure gradient and Coriolis effect are known as _____ currents. 

Because density is largely a function of temperature and salinity, the movement of water due to differences in density is called _____. 

The temperature and water content of air greatly influence its _____.  

In general, the longer the wavelength, the _____ the wave energy will move through the water. 

A _____ forms when a sand spit closes off a bay by attaching to a headland adjacent to the bay. 

Wind waves at many wavelengths and heights may approach a single spot from different directions to form a(n) _____. 

Upwelling areas are _____. 

Of the six great current circuits of the world, the _____ is the largest current and technically not a gyre because it does not flow around the periphery of an ocean basin. 

The orbits of water molecules in waves moving through _____ water are flattened by the proximity of the bottom. 

Marine erosion is usually most rapid on _____ coasts.