Your microwave oven has "combination" features, most likely a combination of microwave and convection cooking. Consult the user manual for your specific oven to find out how to use these features.
You can't. Only if it's a microwave-oven
A convection oven moves the air, a microwave does not.
compare microwave oven to conventional oven
Microwave oven
There are no famous microwave oven commercials. There were a lot of commercials for microwave ovens in the 1970s, but none stood out as famous. This question probably should have asked what a commercial microwave oven is. A commercial microwave oven is a microwave oven used by restaurants and cafeterias.
If you mean the microwave and OVEN , then it does have microwave oven and also electrical heating oven capability.
A convection oven moves the air, a microwave does not.
Microwave oven
a microwave
I would use a microwave oven, it's a bit risky in a gas oven.
The microwave oven was invented in the United States.
No - you will get food poisoning - do not heat quiche in a microwave oven - use a conventional oven & heat thoroughly