Answer the following question given this paragraph: 

Sublimation is the process in which a solid changes directly to a gas without going through the liquid state. Solid carbon dioxide is an example of a substance that undergoes sublimation.


Q: What is the process in which a solid changes directly to a gas without going through the liquid state called?

 Choices:

- vaporization

- amplification

- Diffusion

- sublimation

A:
sublimation
