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Definiciones

Principales elementos en la bi

khristos
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Definiciones

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    1. Definiciones Ciclo: Secuencia de cambios que, una vez completados, produce un estado final idéntico al original. Material: Sustancia(s) de la(s) cual(es) esta compuesto un objeto. Sustancia: Materia cuya composición química es conocida. Elemento: una de las 116 sustancias conocidas que no pueden separarse en sustancias mas simples mediante métodos químicos.

    4. Ciclos biogeoquímicos

    23. Fijación antrópica del nitrógeno

    24. Transferencias terrestres-acuáticas de N derivadas de la actividad humana

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