Margie has a long-standing pattern of unstable and intense relationships and mood. she has a history of trauma and is sometimes inappropriately seductive. she abuses drugs, has threatened suicide several times, and cuts her arms with a razor blade when she feels particularly bad. she desperately tries to keep others from abandoning her, partly because she has a very unstable sense of self. if she has a personality disorder, it is most likely that she has

Margie presents a Cluster b persoanility disorder known as Borderline personality disorder.

Explanation:

First, Custer B is the category of a group of disorders that have the following characteristics: a high level of dramatic reaction to behavioral triggers, overly emotional reactions to others, unpredictable thinking and behavior to certain stimulus.

Now cluster B disorders have different orientations, in this case, Margie presents a personality disorder known as a borderline personality disorder. It is characterized by difficulty in the regulation of emotions, impulsivity, self-harm, dissociative feelings and psychopathic episodes.

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)