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  • 15-09-2022
  • Biology
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What is the primary ingredient in the decomposition layer of the ecocolumn?
A. humus
B. mostly gaseous carbon dioxide
C. only rocks
D. mostly pebbles

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Respuesta :

aidaestevez33
aidaestevez33 aidaestevez33
  • 15-09-2022
Respuesta:
A (Humus).
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