1. Does crying reduce life span? 2. What makes the heart to beat? 3. can we prepare powdered carbon (IV) oxide and

Question: 1. Does crying reduce life span? 2. What makes the heart to beat? 3. can we prepare powdered carbon (IV) oxide and use it in an air balloon as a fire-extinguisher?

Asked by Gheida on 22 May 2018.

Question: 1. Does crying reduce life span? 2. What makes the heart to beat? 3. can we prepare powdered carbon (IV) oxide and use it in an air balloon as a fire-extinguisher?