What's an example of a task that requires knowledge of physical objects to perform?
How to Kill Green Hair Algae in a Freshwater Aquarium

What's an example of a task that requires knowledge of physical objects to perform?
How can I insure my phone will find its way back to me if I lose it?

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

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