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No, I read that when the leaves fall it released CO2 back to nature.tvb now,tvbnow,bttvb: J6 B* F( m0 ], j$ f
I don't know its true or not.4 A* f' M- ?4 ~/ H1 v0 D' j. }
SweetLemon 發表於 2016-7-14 08:05 PM  A tree can absorb 13lb CO2 every year. A typical V8 car produce 220g CO2 per km. How many trees are needed? |