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

What's an example of a task that requires knowledge of physical objects to perform?
How to make fresh boysenberry Blueberry syrup for pancakes at home.

What's an example of a task that requires knowledge of physical objects to perform?
To protect a home made house from rain,

What's an example of a task that requires knowledge of physical objects to perform?
How can I keep leaves from polluting my outdoor koi pond?