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The definition of an anxiety disorder also includes an impairment of day-to-day functioning. A person with an anxiety disorder often experiences a significantly reduced quality of life and anxiety disorders are associated with possibly fatal heart conditions. There are many reasons why geology is vital in everyday life also to civilization. Think about earthquakes, landslides, floods, droughts, volcanic activity, ocean water currents (el Ni??o), varieties of soil, fuel oils, minerals (gold, silver, uranium), and so on. Geologists study these concepts. Thus, the study of geology plays an important role in modern life and civilization.