Why do onions irritate your eyes?

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Why do onions irritate your eyes?
 
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Demons.
 
it contains sulfuric compounds
 
How do these sulferic compounds affect our eyes? What do they do?
 
sulfur compound + saline = sulfuric acid (very very small amounts)
 

Thread 'Here comes COVID-19 version BA.2, BA.4, BA.5,...'

Popular article referring to the BA.2 variant: Popular article: (many words, little data) https://www.cnn.com/2022/02/17/health/ba-2-covid-severity/index.html Preprint article referring to the BA.2 variant: Preprint article: (At 52 pages, too many words!) https://www.biorxiv.org/content/10.1101/2022.02.14.480335v1.full.pdf [edited 1hr. after posting: Added preprint Abstract] Cheers, Tom
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