What's an example of a task that requires knowledge of physical objects to perform?
What is the best kind of hot glue gun to buy?

What's an example of a task that requires knowledge of physical objects to perform?
how to improve store bought salad dressing?

What's an example of a task that requires knowledge of physical objects to perform?
How to kill weeds that come up through the cracks in walkways.

What's an example of a task that requires knowledge of physical objects to perform?
How can I know which watermelon is most watery?