how do onions make you cry

Question: how do onions make you cry
- Keywords:
  cry,
  onion
Asked by sahara to Stephen, Dervil on 17 Nov 2016.
- Dervil Cody answered on 17 Nov 2016:
  
  When you cut onions, a chemical is released into the air which irritates your eyes. Your body’s clever response is to produce tears in order to wash away the irritating chemical, which is why you cry!

Question: how do onions make you cry