What's an example of a task that requires knowledge of physical objects to perform?
Prevent books from falling off bookshelf

What's an example of a task that requires knowledge of physical objects to perform?
How to remove stain from wood counter-tops?

What's an example of a task that requires knowledge of physical objects to perform?
What flowers do you use when you want to dry and press flowers?

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