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water, salt, and organic compounds

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βˆ™ 11y ago
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βˆ™ 5mo ago

A fingerprint is mainly composed of sweat from the sweat pores located on the skin's ridges. These sweat glands produce a mixture of water, salts, amino acids, and other compounds that leave a residue when touched. This residue forms the unique pattern of a fingerprint.

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Q: What is a fingerprint mainly composed of?
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