What's an example of a task that requires knowledge of physical objects to perform?
To remove grime from a stainless steel dishwasher.

What's an example of a task that requires knowledge of physical objects to perform?
how to dye your hair blue with no chemicals

What's an example of a task that requires knowledge of physical objects to perform?
How to preserve whole grapes.

What's an example of a task that requires knowledge of physical objects to perform?
Reduce cleaning time of house floors.