I How Much Oxygen ,would 200 Million Trees Give Off

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    How Much Oxygen Would 200 Million Trees Give Off ,in 3 Billion Years.

    something to think about,when we are cutting down the trees,if you think about it,without the trees we would not be here ,without this oxygen we are dead,so why are we cutting them down,think about it this way,if one tree give off,2ltr of oxygen per day,so in 3 billion years...
    danielm85948 danielm85948
    61-65, M
    1 Response Feb 21, 2011
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