Why onions make us cry

WHEN we peel onions they send out a substance that irritates our eyes. This oil contains sulphur that gives onions their sharp smell and causes our eyes to water. We cry to try and wash the substance away. -

WHEN we peel onions they send out a substance that irritates our eyes. This oil contains sulphur that gives onions their sharp smell and causes our eyes to water. We cry to try and wash the substance away. -

Tell Me Why?, Chancellor Press

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