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Radiation (Comparison (Made Of.. (Charge (Mass (Ionising Power (Stopped By…

- - - - Mass
        
        Ionising Power
        
        Stopped By..
        
        Other
        
        3mm Of Aluminium
        
        A few cm of Lead
        
        Paper/Skin/A few cm of air
        
        Medium
        
        High
        
        Low
        
        1/2000
        
        4 High
        
        Nothing
      - -1 High
      - 0
      - +2 High
- - - - When plants absorb radioactive materials those which eat the plants pass it up through the food chain. E.g. Plants -> Bunny -> Fox
    - - Some rocks emit a radioactive radon gas.
    - - Radiation which reached us from space