no it does not
Because that is what the Dry powder (or Dry Chem.) is made for.
If it's a C02 powered system then yes you can dry fire it. If it's a spring powered system the NO do not dry fire it. It will damage the system.
They can dry it out
YES
No
You dry fire it and push the roundish button on the back side of the slide. While you're doing that, you pull up on the slide.
dry cooking fire grease fire and oven fire
Yes, No difference than when loaded.
dry wood is easily caught on fire. When wood is wet it cant catch fire. That's why when you make a camp fire you want dry wood. It lights easier and burns better.
dry cooking fire grease fire and oven fire
You dry fire it and push the roundish button on the back side of the slide. While you're doing that, you pull up on the slide.