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Metals are used in many products because of the characteristic properties that most metals have. Which product requires the high luster of metals in order to work?

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EgMusic
The Answer is A. Mirrors. 

This is because a mirror has a sheet of metal behind the glass, perhaps silver, that reflects the light back, making an image.

Answer: Mirror

Explanation:

Metals have various properties such as they are ductile, malleable, good conductors of heat and electricity, lustrous.

Mirror uses the property of metals being lustrous in nature. Mirrors are used to reflect images. A glass is coated with metal at the back which acts a mirror. Metallic objects such as utensils also act as mirror since they reflect light. Our image can be seen on these metallic objects.

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