So last night I was thinking about how pollution and pollutants affect the life on Earth; after a few hours of carefully thinking about this topic I came up with this question: ~Megan
Well since we inhale oxygen and exhale carbon dioxide.. I would think that some of the air we breathe has CO2 since we exhale it.. Which would mean we would have to inhale some amount of CO2.. Right? And CO2 can kill us. Just my thought on this.