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'ഇക്കോസിസ്റ്റം' എന്ന പദം ഉപയോഗിച്ചത് ആര് ?

Aഓടം

Bടാൻസ്ലി

Cലിൻഡെമാൻ

Dഎൽട്ടൺ.

Answer:

B. ടാൻസ്ലി


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