Which of the following is true regarding phase changes? a. sublimation is the same as boiling. b. condensation is the reverse of evaporation. c. freezing is the same as sublimation. d. melting is the reverse of deposition.

B. Condensation is the reverse of evaporation.

Explanation: Condensation is a process in which a gas changes into liquid phase when allowed to cool.

Evaporation : It is process in which liquid changes into gaseous phase by providing heat.

Sublimation : It is a process in which a solid directly changes to gaseous phase by providing heat.

Melting : It is process in which a solid changes into liquid phase by providing heat.

Deposition is a  process in which a gas deposits as solid phase when allowed to cool

Freezing is a process in which a liquid changes into solid phase when allowed to cool.

Boiling is a process in which liquid changes into gaseous phase by providing heat at some particular temperature.

a:

by the combination of an unlimited number of elements