Atmospheric pressure<span> is </span>caused<span> by the weight of the </span>atmosphere<span> pushing down on itself and on the surface below it. </span>Pressure<span> is defined as the force acting on an object divided by the area upon which the force is acting.
http://nova.stanford.edu/projects/mod-x/id-pres.html
</span>
Explanation:
weaknesses
inflation
jealousy and arguing among states
tax wars
foreign affairs and shambles
What explain your question more