Cuánto equivale 4.367x1012 µg en kg?

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.

Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;