What's an example of a task that requires knowledge of physical objects to perform?
Remove old bumper stickers from automobiles without using solvents.

What's an example of a task that requires knowledge of physical objects to perform?
how do you wave at someone?

What's an example of a task that requires knowledge of physical objects to perform?
To sweeten chili, you can

What's an example of a task that requires knowledge of physical objects to perform?
In case of a fire during the frying the turkey