What's an example of a task that requires knowledge of physical objects to perform?
How do you remove mango juice stain from white cotton fabric?

What's an example of a task that requires knowledge of physical objects to perform?
how do you filter speech?

What's an example of a task that requires knowledge of physical objects to perform?
To keep boots made of soft fabric upright,

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