On three separate occasions when she was out in public over the past three months, Vanessa has had to rush home after being overwhelmed by dizzy spells during which her heart pounded and she felt as if she couldn't breathe. On the last occasion she went to the emergency room, but a thorough examination ruled out any medical problem. Nevertheless, Vanessa has become increasingly fearful about having more episodes, and she has restricted her activities to only the most essential outings. Vanessa seems to be displaying symptoms of:

A. post-traumatic stress disorder.
B. generalized anxiety disorder.
C. social phobia.
D. agoraphobia.

D. agoraphobia.              

Explanation:

Agoraphobia: In psychology, the term "agoraphobia" is described as a type of 'anxiety disorder' whereby a person avoids situation or places and feels fear that may lead to create or develop panic, embarrassed, helped, or trapped in a person. Generally, a person starts experiencing agoraphobia by having one or more that one panic attacks that lead to develop fear in the person.

In the question above, the given statement signifies agoraphobia.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer

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)