What type(s) of properties of a substance do not change with a change in amount or shape?
a) physical only
b) chemical only
c) physical and chemical

well in order to answer this question you have to provide more information < 3

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).