Question

The shining surface of the metals may become dull due to the formation of ____ layer.​

Answer 1

Answer:

Cloud storage is a model of computer data storage in which the digital data is stored in logical pools, said to be on "the cloud". The physical storage spans multiple servers, and the physical environment is typically owned and managed by a hosting company.

Answer 2

Explanation:

When some metals get exposed to air there is an oxidation process occurring on the outer layer of the metal. Due to the oxidation; a new layer covers the existing metal; hiding its original view; giving it a dull appearance. Almost all metals combine with oxygen to form metal oxides.

Metal + Oxygen → Metal oxide.

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