Sociology, asked by samairasharma026, 7 months ago

what is a watermark?

Answers

Answered by InstaPrince

65

Explanation:

A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light, caused by thickness or density variations in the paper. Watermarks have been used on postage stamps, currency, and other government documents to discourage counterfeiting.

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