Answer:
The process is 2) sublimation.
Explanation:
Sublimation is the progress of a substance straightforwardly changing from the solid state to the gas stage, without going through the liquid stage.
Sublimation is a type of endothermic procedure that happens at temperatures and weights beneath a substance's "triple point" in its stage outline, which compares to the most reduced weight at which the substance can exist as a fluid. The turn around the procedure of sublimation is desublimation, in which a substance passes legitimately from a gas to a strong stage.
