What's an example of a task that requires knowledge of physical objects to perform?
How to make jeans look unique?

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

What's an example of a task that requires knowledge of physical objects to perform?
to make a custom concrete base for a lamp.

What's an example of a task that requires knowledge of physical objects to perform?
To shorten the length of the grass in your lawn,