'It's about .03% of the air; you breathe a little in & a lot out'
carbon dioxide
IN THE AIR UP THERE: Its about .03% of the air; you breathe a little in & a lot out
It's about .03% of the air; you breathe a little in & a lot out
It's about .03% of the air; you breathe a little in & a lot out
IN THE AIR UP THERE
carbon dioxide
IN THE AIR UP THERE