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  • Do you know what will happen when the oxygen disppear from the face of the Earth?
  • If we do not have oxygen,all living things will died as we all use oxygen to breathe.
  • The daytime sky would get darker. With fewer particles in the atmosphere to scatter blue light, the sky would get a bit less blue and a bit more black.
  • All pieces of untreated metal would instantly spot-weld to one another. This is one of the more interesting side effects. 
  • The reason metals don’t weld on contact is they are coated in a layer of oxidation. In vacuum conditions, metal welds without any intermediate liquid phase (Cold welding).
  • So oxygen is very important in our life. We cannot live without oxygen.
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