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Biologisk mångfald salthalten avgör vilka arter som trivs
Ekosystemtjänster fisk att äta
hu mycket vatten finns det i jorden Ca 70% av jordens yta
vad finns i Västerhavet Nordsjön, Kattegatt och Skagerrak Klippstränder och mjukbottnar Problem med övergödning
vad finns i Östersjön bräckt vatten Förorenat Syrebrist och bottendöd
Created by: user-1990721
 

 



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