What's an example of a task that requires knowledge of physical objects to perform?
how do you cover a window up?

What's an example of a task that requires knowledge of physical objects to perform?
chopper

What's an example of a task that requires knowledge of physical objects to perform?
To thicken a sauce while cooking it, you can

What's an example of a task that requires knowledge of physical objects to perform?
Keep flies away from home.