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Solution


Q.

Alexander von Humboldt described for the first time                      [2017]
1 laws of limiting factor  
2 species area relationships  
3 population growth equation  
4 ecological biodiversity.  

Ans.

(2)

Alexander von Humboldt described species area relationship for the first time. He observed that within a region, species richness increases with increasing explored area, but only upto a limit.