Translate the given Spanish text to English

[EX Q]: The silica-alumina may be amorphous but preferably is crystalline zeolite.
[EX A]: El silice-alumina puede ser amorfo pero de preferencia es zeolita cristalina.

[EX Q]: A mobile vending apparatus (11) for potable water is described.
[EX A]: Se describe un aparato expendedor movil para agua potable.

[EX Q]: 8), removing the supports (No.
[EX A]:
8) retirando puntales (No.