Which ion is found in a glass of water?

a. h-
b. n+
c. oh-
d. o-

Rue or false siblings look simila rbecause they each have some traits of their parents.

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks