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

What's an example of a task that requires knowledge of physical objects to perform?
how to make a mortadella with pepper relish

What's an example of a task that requires knowledge of physical objects to perform?
Prevent sweat build up in shoes.

What's an example of a task that requires knowledge of physical objects to perform?
get finger prints off gun