Respuesta :
The correct verb to use in each case is:
The desk is made out of wood.
- Estar
Where are the children?
- Ser
Use of verbs "ser" or "estar."
In Spanish, each of these verbs has a different functionality, on the one hand, the verb "estar" is used to mention the place where a noun is found, the material from which it is made or mood.
On the other hand, the verb "ser" refers to things inherent to the noun, such as its skin, eye or hair color, its personality, its gender, among other things that characterize it but that generally could not be modified.
If you want to learn more about Verbs in Spanish, you can visit the following link: https://brainly.com/question/19796346