Using the Diagnostic and Statistical Manual of Mental Disorders (DSM) a mental health professional is able to identify the specific type of anxiety disorder causing the symptoms as well as any other possible disorders including depression, ADHD or substance abuse which may be involved.
Melting is the process in the rock cycle that causes magma to form.
The third process that causes volcanic eruptions is an injection of new magma into a chamber that is already filled with magma of similar or different composition. This injection forces some of the magma in the chamber to move up in the conduit and erupt at the surface.