, y- ^' z! ~ F0 Btvb now,tvbnow,bttvbtvb now,tvbnow,bttvb( m. l9 Z. W# d, P+ U( ^
No, I read that when the leaves fall it released CO2 back to nature.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。# b( @) ~1 V+ A; m3 ^3 |) U9 ]
I don't know its true or not.
/ R' y$ H' W4 d5 ISweetLemon 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? |