In the revised, fifth edition of the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM-5), hoarding disorder becomes a separate diagnosis, characterized by a persistent difficulty discarding or parting with possessions, regardless of their actual value..
Surface ocean currents are driven mainly by winds and are affected by seasons.Deep ocean currents are driven mainly by density and temperature gradients. However the most important and fundamental causes for the formation of the ocean currents are solar heating,winds and gravity. Source(s): Arasan Â· 9 years ago.
Ocean currents play a critical role in climate and marine ecology. Upwelling areas are particularly important in both processes. Here we will examine what ocean upwelling is, how it works, some examples, and will finish with a brief quiz. Earth Science 102: Weather and Climate / Science Courses