Oxygen may not be the main constituent of the Earth’s atmosphere, but its role in the survival of many forms of life elevates its significance. No one can live without sufficient quantity of food, water and oxygen. Of the three, oxygen is by far the most important and urgently needed. Have you ever imagined what if oxygen from the Earth was lost for 5 seconds? To find out more read below..
[sc:ad-text]Source: www.unbelievable-facts.com/2014/02/this-is-what-will-happen-if-earth.html
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