Jawapan

2016-07-31T08:43:40+08:00
Higher the respiratory rate, higher the oxygen concentration..
but, can you explain it into more detail?
when we inhale, air will enter the lungs, you can refer to form2 science, more oxygen will enter the blood while lot of carbon dioxide out from the blood..
when we inhale, air will enter the lungs, you can refer to form2 science, more oxygen will enter the blood while lot of carbon dioxide out from the blood..