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             A 
              Global Disaster!  
              In this alternative explanation of the dinosaurs' disappearance, 
              the end came literally in a global disaster--the impact of a giant 
              asteroid! The crater formed by the impact is estimated to be at 
              least one hundred miles across. Rock thrown out of the crater blanketed 
              the ground up to several thousand miles away covering much of North 
              and South America destroying everything. Giant waves called tsunamis 
              swept over the land. 
            But, not only 
              the Americas were affected! The impact and resulting heat wave would 
              have caused giant forest fires all over the world. Thick clouds 
              from the dust thrown up by the impact and clouds of smoke from fires 
              started by the heat of the impact explosion covered the whole Earth 
              for at least six months to a year. Algae in the oceans and plants 
              on the land not burned by the fires died due to the lack of sunlight. 
              Chemicals from the asteroid and the heated air formed acid rain 
              poisoning the rivers, lakes and oceans, causing countless additional 
              deaths. 
            Thus, according 
              to this idea, the dinosaurs died quickly by fire, storm, poison, 
              and starvation. 
            But now the 
              question is: did a giant asteroid strike Earth 65 million years 
              ago? Is there evidence for impact craters 
              on Earth, especially a big one at just the right time? Were there 
              any asteroids or comets 
              in space that could have hit the Earth? Is there evidence of huge 
              fires? Do the fossils show that the dinosaurs all died suddenly? 
              Could such an impact ever happen again and destroy our civilization? 
            In your search, 
              you might want to look for information on asteroids, impact craters, 
              iridium, and extinctions. Good luck!  
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