Dyes are used primarily to impart color to textiles, leather, paints, photographs, cosmetic and pharmaceutical products, biological stains, and food. Many natural dyes have been largely replaced by synthetic dyes that were developed at the end of the nineteenth century.
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Explanation:
Dyes are used primarily to impart color to textiles, leather, paints, photographs, cosmetic and pharmaceutical products, biological stains, and food. Many natural dyes have been largely replaced by synthetic dyes that were developed at the end of the nineteenth century.