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      What Can Lichens Be Used for?
      LIFE SCIENCES
   
    
    
        
        
            During an outdoor lesson, the students will make observations of the environment and examine the relationship between air quality and the occurrence of various types of lichens on trees.
        
     
    
      
    
    
    
    
    
                Author: Ewa Sucharzewska
                Methodology: Joanna Gulczyńska
                Translation: Paweł Fabrowicz
                Producer: Klaudia Chmura