What's an example of a task that requires knowledge of physical objects to perform?
To ensure that two ends of string stay together, you can

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

What's an example of a task that requires knowledge of physical objects to perform?
To tell when baked goods are done baking, you can

What's an example of a task that requires knowledge of physical objects to perform?
What are some things I can grow that might repel mosquitoes?