El contenido óptimo de hume- dad de un suelo es _____.
a. la cantidad máxima de agua
que el suelo puede retener
b. la cantidad de agua que
hace que el suelo sea
lodoso
c. la cantidad de agua que
permite la mejor compacta-
ción
d. la mínima cantidad de agua
que mantiene el suelo unido
Answer: C
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