Question

1. what is app lab primarily used for? creating and sharing mobile apps writing essays playing video games designing websites 2. which function is used to change the properties of ui elements in app modifycomponent() setproperty() changeproperty() setelement()

Explanation:

1. App Lab is mainly a tool for designing web - like applications, not for writing essays, playing video games or creating and sharing traditional mobile apps in the most common sense.
2. In App Lab, the setProperty() function is typically used to change the properties of UI elements. There is no modifyComponent(), changeProperty() or setElement() functions in the common App Lab programming context for this specific purpose.

Answer:

1. Designing websites
2. setProperty()