Which of these is NOT a physical change?
A.
Candle burning.
B.
Evaporation of water.
C.
Magnetisation of iron.

C. Magnetization of iron

Explanation:

This is a chemical change and cannot be undone by physical means therefore it isn't a physical change

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).