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。) T! C$ h s: o- F& ]! [# g
* I6 e8 s- w, f& s& y3 n: h5 J: ]3 \# xNo, I read that when the leaves fall it released CO2 back to nature.
5 M- s! a V; x$ @9 ?6 v P- TI don't know its true or not.
1 x$ B0 A0 ?6 e; f) o) X6 etvb now,tvbnow,bttvbSweetLemon 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? |