What's an example of a task that requires knowledge of physical objects to perform?
Remove shirt wrinkles quickly.

What's an example of a task that requires knowledge of physical objects to perform?
To remove corrosion from an old coin with household goods.

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

What's an example of a task that requires knowledge of physical objects to perform?
How to create slingshot pellets