The direct answer is iron oxide, the 'but wait there's more" answer involves what else is in the environment, temperature, chemicals, electrolysis, etc. when the rusting occurs.
Pull all the doors down and get the rest from some were else
your sckull of course what else
How else are you going to get in?
Chemical. Something else is created as a result, and the composition does change, making it a chemical change.
France, Japan and Korea have them, not sure where else, but to answer your question, yeah. revolving doors are used outside the USA
Rusting of iron is a redox reaction where iron reacts with oxygen and water to form iron oxide (rust). It is not a combination reaction since it involves the transfer of electrons between iron and oxygen.
Ray Manzarak. He was a few years older than anyone else in the band.
The skull also protects the eyes, ears, nose, and mouth. It provides a hard, protective barrier for these delicate sensory organs and structures.
China. Where else?
The generator or the alternator
To protect your heart and lungs.