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Phenomena (Earthquakes (Can cause mass destruction (Some are very weak,…

- - - - some are more destructive than others
- - - - Can cause Underwater trenches
- - - - Viscosity: Thickness of Lava
        
        Influences on how types of volcanoes are formed.
      - Magnitude and intensity
- - - - Scientists use the law of superposition
        
        Determines age of a time period.
      - Geologic time scale
    - - These were ancient creatures from the cambrian and precambrian period.