oxygen is needed to produce energy from food
You need to breathe in oxygen and you need to breathe out carbon dioxide.
Well their are over 100 types of elements and the one we need to breathe with is oxygen.
False, the more oxygen you need the faster you will breathe.
We need to breathe oxygen.
Oxygen
Oxygen.
no oxygen is what people need to breathe in.
Why do people breathe ? Plants need oxygen too .
We get oxygen from the trees. They produce the oxygen that we need to breath and live.
To Breathe.. You Use Your Lungs To Breathe In Oxygen And Breathe Out Carbon Dioxide.
nitrogen, oxygen
You need to breathe oxygen to stay alive. Oxygen is essential for the process of respiration, where your body cells convert oxygen into energy.