The atmosphere is divided into spherical layers based upon the A. amount of precipitation contained within each layer of the atmosphere.. B. concentration of oxygen contained within each layer of the atmosphere.
C. variation in the concentration and amount of ozone contained within each layer of the atmosphere.
D. temperature changes from variations in absorption of solar energy within each layer of the atmosphere.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.