Agas changes directly to a solid during(1) fusion (3) saponification(2) deposition (4) decomposition

Answer is: deposition.

Deposition is a thermodynamic process in which gas transforms into solid without passing through the liquid phase.  

For example, forming snow in clouds directly from water vapor.

During deposition phase change, energy is released.  

Another example, the phase change H₂(g) → H₂(s) is called deposition and the enthalpy change, ΔH, for this phase change has a negative (-) sign.  

an honest friend. a friend who cares about me, and wont use me. a friend that i can trust. not someone who is fake

mark this brainliest lol i need one more.