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Uses of oxygen

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For combustion
       Breathing
      Is mixed with hexane and        use with mountain               climbers
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Breathing, germination 
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Used in hospitals with patients having breathing difficulty
Used together with hydrogen to cut metals.
Used in welding 
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For respiration
For photosynthesis

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Germination ,gaseous exchange, burnig ,rusting.


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Germination,combustion/rusting,in breathing

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Germination
Combustion
Rusting
Breathing
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Combustion, germination,

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Use for combustion
When mixed with helium is used by mountain climbers and deep Sea divers
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Used in hospitals 

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