a microwave
It depends, if you need it done fast use the microwave, if you need it slow cooked use the mini oven.
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
Microonda for the wavelength and forno a microonde for the oven are Italian equivalents of the English word "microwave."Specifically, the feminine noun microonda is "microwave" as a wavelength. The masculine noun forno means "oven." The preposition a means "at, to." The feminine noun microonde translates as "microwaves."Italian language speakers can be heard using the English loan word microwave for the oven. They also may shorten the above-mentioned phrase to microonde. In such an event, they will make the noun masculine - il microonde ("the microwave [oven]") or un microonde ("a microwave [oven]") - since the article refers to the dropped word forno.The pronunciation will be "mee-KRON-da" for the wavelength in its singular form and "FOR-no a mee-KRON-dey" for the 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
I would use a microwave oven, it's a bit risky in a gas oven.
The microwave oven was invented in the United States.