3 V) e* w5 v) @5 E; ?6 L6 m% htvb now,tvbnow,bttvb
$ h& f" ]# ?# Z+ }0 `tvb now,tvbnow,bttvbNo, I read that when the leaves fall it released CO2 back to nature.
- z$ J8 o0 g+ K% R: Z" q, V, rI don't know its true or not.
: S) r0 j k$ {, E- ?; cTVBNOW 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。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? |