• Question: why are tears salty?

    Asked by diack to Alexandra, Dean, Jess, Luisa, Sian on 22 Jun 2010 in Categories: . This question was also asked by rebeccasheps.
    • Photo: Sian Foch-Gatrell

      Sian Foch-Gatrell answered on 21 Jun 2010:

      Firstly I guess humans are salty, and secondly salts help to combat against bacterial infections which probably help against eye infections. This is a complete guess by the way.

    • Photo: Dean Whittaker

      Dean Whittaker answered on 22 Jun 2010:

      No idea.

    • Photo: Luisa Ostertag

      Luisa Ostertag answered on 22 Jun 2010:

      Because there is actually a little amount of salt inside. But I don’t know why.

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