Water molecules vibrate under microwave spectrum of radiation. So any food thrown in the microwave is heated up mainly by water molecules getting excited and colliding into other particles.
rise
Water molecules
Microwave it. Microwaves are your friend.
A potato wrapped in paper will cook in a microwave oven, because paper does not block microwaves. A potato wrapped in aluminum foil would not cook in a microwave because aluminum foil does block microwaves.
It's not so much the material but the criss cross pattern of the material that keep the microwaves in. I would STRONGLY suggest however, that if you can't get a replacement part for a microwave and are not qualified to work on a microwave that you dispose of it and purchase a new one. Unprotected microwaves or incorrectly serviced microwaves are EXTREMELY dangerous.
Substances like water, fats, and sugars absorb microwaves, causing them to heat up when placed in a microwave oven. This absorption of microwaves leads to the efficient and even heating of food items that contain these substances.
hydroweed
Water molecules in the food. Microwaves work by only vibrating the water molecules, in order to increase the temperature of the food without significantly altering the properties of the food itself.
The material that absorbs light most effectively is black or dark-colored materials, as they absorb more light and reflect less.
Ozone absorbs UV rays. This is present as the ozone layer.
bounty paper towls
There is absorbant material that absorbs the urine.