What's an example of a task that requires knowledge of physical objects to perform?
To make pencils out of wood scraps.

What's an example of a task that requires knowledge of physical objects to perform?
How to make a custom mannequin for yourself cheaply.

What's an example of a task that requires knowledge of physical objects to perform?
Reduce heartburn pain.

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