When you breathe do take in oxygen?

Yes, when you breathe, you take in oxygen. Oxygen is a vital gas that is essential for human survival. It is one of the two main components of the air we breathe, making up about 21% of its volume. When we inhale, oxygen enters our lungs and is absorbed into our bloodstream. It is then transported throughout the body, where it is used by our cells to produce energy. Without oxygen, our bodies would not be able to function properly and we would eventually die.