Answer : Gases are always absorbed by the solid, but absorption varies greatly. The acceptance is quite small, and in general, the phenomenon cannot be taken as a solution. The exploitation takes it only. There are three other ways in which solids can absorb the gases.
A gas can be evenly distributed to produce a homogenous solution without any change in the composition of the gas or the molecular structure. True solutions form and closely resemble liquefied gas solutions in such cases. Solutions of sulphur dioxide and ammonia in charcoal can be examples of such claims.