What's an example of a task that requires knowledge of physical objects to perform?
Build a book shelf out of old lumber.

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

What's an example of a task that requires knowledge of physical objects to perform?
How To Make Cheesy Ground Beef Bell Peppers

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