[AndrewC]

For example, the oil & gas industry would collapse if you removed the cars & trucks that transport the gasoline to the gas stations and that use the gas to run.

Are you thus allowing concepts as real objects? In any case, remove the oxygen from the atmosphere and the industry will collapse.

[jennyp]

In any case, remove the oxygen from the atmosphere and the industry will collapse

But remove the industry and the oxygen will survive. :-)