Which of the following is true about the age of rock layers and the age of the Earth?
OA. The Earth is older than any rock layer.
OB.
The top layer in a sequence of rock layers is older than the Earth.
C.
The bottom layer in a sequence of rock layers is older than the Earth.
D.
All rock layers are older than the Earth.

the correct answer would be d. hope this !

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

a is the correct answer