occurs when a gas changes directly into a solid without going through a liquid phase. * sublimation
vaporization
condensation
deposition

Deposition

Explanation:

Deposition is the phase transition in which gas transforms into solid without passing through the liquid phase. Deposition is a thermodynamic process. The reverse of deposition is sublimation and hence sometimes deposition is called desublimation.

for points guys

they are made of gases.

they have a spherical shape.

they make energy through fusion.