Which change of state is shown in the model?

condensation
evaporation
sublimation
deposition

The answer is: Sublimation.

From the model, we have that the phase transition type is sublimation since there is a substance in the solid phase changed to the gas phase.

Sublimation is the process where a substance changes its phase (state) from solid to gas phase without passing through the liquid phase.

When the molecules of a substance are joined, meaning that the space between them is minimum, it's called a solid phase.  

When the molecules of a substance are separated, even more than they are in the liquid phase, there is a new phase called the gas phase.

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second mirror gathers light from a faraway object and reflects it to another mirror. - a.

c.the charges if the proton and electron and gravity