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Obstacle
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<p>An obstacle (also called a barrier, impediment, or stumbling block) is an object, thing, action or situation that causes an obstruction. A obstacle blocks or hinders our way forward. Different types of obstacles include physical, <a href="/facts/Economic/okLWSsEY">economic</a>, <a href="/facts/Biopsychosocial/bCKxyD5s">biopsychosocial</a>, cultural, political, technological and military. </p>