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Test # 59


1.
When you go to an auction and you want to buy a particular item, you can simply make a ________ for it.

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  • Precautions while using Microwaves

    Metallic materials totally reflect microwaves

    Microwaves may either be reflected, transmitted or absorbed by matter in their path. Metallic materials totally reflect microwaves. Most non metallic materials such as glass and plastics are partially transparent to microwaves. Material containing moisture, such as food and even people, absorbs microwave energy. If energy is absorbed at a rate greater than the rate at which the material looses energy (ie. rate of cooling), its temperature will increase.


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