Write down the composition of air?​

By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

It would be answer b because volver a mi cada would be go back to my house

1-b si, conocemos a tu amiga maria2-d saben