We all breath in oxygen and breath out CO2. Did you ever wonder how we can save someone's life by blowing CO2 into their mouths? It turns out that we have just enough oxygen in what we exhale that we be of help to someone who in dire need of a breath of fresh air. Isn't that simply miraculous?
Showing posts with label breath of fresh air. Show all posts
Showing posts with label breath of fresh air. Show all posts