Is it normal to inhale oxygen and exhale carbon dioxide

And environmentalists say cars pollute the planet! It's sickos like you! XD

Fuck no. Who does that?

Normal if you are an animal, but not normal if you are a plant.

I let out a little methane.

I inhaled some tasty nitrogen this morning.

No, the Bible, Quran, and basically all religious texts (including science reports) say you shouldn't destroy the earth. Stop ruining everything.

Mammals? Does such word even exist? Now please take your nonsense and throw it away. Or even better yet, throw yourself away over the edge of the world (earth is flat)

Well it's 69% normal so jokes on all of you

this is NOT normal. despicable.

It is far better and more healthy than breathing in Dihydrogen monoxide. Breathing that will kill you in short order.

I exhale nuclear waste.

What sort of twisted asshole are you for doing that and polluting the atmosphere? Think of the fluffy little bunnies and the kids, you selfish bastard.