Question

Put them in the right spot !
It will really help if someone is available to help :)

Answer 1

1.Oxygen
2.Into
3.Carbon dioxide
4.Exhaled

Hope this helps

Answer 2

Gas Exchange: Transfer of oxygen from inhaled air into the blood and transfer of carbon dioxide into the exhaled air.

Step-by-step explanation:

you inhale oxygen, then exhale carbon dioxide, which is "waste gas." This process is known as gas exchange.