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.
How do some deep ocean currents form? Deep ocean currents are caused by 3 things:    change in temperature  change in salinity by evaporation  change in salinity by freezing   Because colder water and s â¦ altier water are more dense, they sink,  and the motion causes deep currents. 8 people found this useful. Manny de la Riva. 616,402 Contributions.