Depends on if you're around 47 people who fart non stop. It could be 100%. :) Good luck! I hope you aren't breathing 100% methane gas from everyone's butts!
Farts rise in the air because they are lighter than the surrounding air.
farts ;)
Farts
air and water(more air than water.).
There's no such thing as yellow farts you cant see your fart because its more like air.......
farts
The background on air pollution is lots of toxic farts.
Maybe, Maybe not.
It is very possible that the water ripples when a duck farts, because the water ripples when a human farts. The air coming out of the duck would make a ripple in the water.
Air wick is used for fighting the smell of farts and pot noodles
put air freshners in your pants
It brings cold air when it farts