Which rock layer is probably the oldest?
A.
3
B.
5
C.
2
D.
4

3

Explanation:

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

b is dominant over the allele for the white fur.