Question

During respiration, what is breathed in and what is breathed out?

Answer 1

carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathed out).

Step-by-step explanation:

I literally just had this one in school

Answer 2

When you inhale (breathe in), air enters your lungs, and oxygen from that air moves to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathed out)

Step-by-step explanation: