The fluid that makes up tears contains water, for moisture and oils for lubrication and to prevent evaporation of tear liquid. Tears also contain mucus for even spreading of tears on the surface of the eyes as well as antibodies and special proteins for resistance to infection.
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Answer:
The fluid that makes up tears contains water, for moisture and oils for lubrication and to prevent evaporation of tear liquid. Tears also contain mucus for even spreading of tears on the surface of the eyes as well as antibodies and special proteins for resistance to infection.
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