This is my answer it is D :]
F. Stone 1 is softer and experienced a greater physical reaction.
Physical reaction is when an object's appearance changes, not the identity (which would be chemical reaction). Because stone 1 is softer, it would be easier to change its physical property. Since stone 2 is harder, it's more durable and therefore harder to change.
Answer:
we'll need a translator to get what you expressing
Keens cycle connects glycolysis and the citric acid cycle.
