What's an example of a task that requires knowledge of physical objects to perform?
To fully clean out a bucket used to store pickles.

What's an example of a task that requires knowledge of physical objects to perform?
Make iced coffee.

What's an example of a task that requires knowledge of physical objects to perform?
When do you take the samples from the plants you want to graft?

What's an example of a task that requires knowledge of physical objects to perform?
One wants the cider to be sour.