According to the law of superposition, which statements are supported by the diagram? check all that apply.

layer c is the oldest layer.
layer b is older than layer d.
layer c is older than layer a.
layer d is the youngest layer.
layer c is younger than layer b.

The answer is the last one

Layer D is the youngest layer

93.2 ml + 3920 ml = 4013 ml total  

(93.2 ml) * (2.03 m) / (4013 ml) = 0.0471 m

the volume in in l of the diluted solution would be 0.0471 m.

it's c. elements are placed in rows based on how may valencies electrons have.