Topic : oxygen is important to human
The air is a valuable resource for life. The air consists from it is among other gas mixture of 78% nitrogen, 21% oxygen and 1% other gases such as xenon, carbon dioxide, argon, neon, hydrogen, helium, and krypton. The gas who important for human is Oxygen Because without oxygen we can not breath and our body can not make ATP (energy). Lack of oxygen will decrease the body's energy reserves. The body will feel easily tired. In addition, ATP deficiency would interfere with the signal from the brain to the muscles elektis so tired muscles. The diases where we Lacked of oxygen is hypoxia. Hypoxia is the condition simtoma lack of oxygen in body tissue caused by the influence of the difference in height.