一個很難去回答的科學問題

潛

Originally posted by yat at 2004-6-22 01:58 PM:
我家姐F.6都唔識....(佢讀地理)
唔知係佢廢定未教...

呢個係物理上的問題，地理班唔識唔出奇

Originally posted by smallpotato226 at 2004-6-23 10:46 AM:
其實這樣計的話,質量會很不穩定......
當前來說當然是增加中...(因為生育率比死亡率高<暫時>)
不過人口老化(D人愈來愈唔想生BB)卻會令質量減少...

以上純粹個人愚見,有不對的請原諒...

現在討論緊地球問題

[ Last edited by Echo21 on 2004-7-14 at 09:12 PM ]

幻藍

Originally posted by 潛 at 2004-7-14 08:44 PM:
呢個係物理上的問題，地理班唔識唔出奇

Originally posted by 潛 at 2004-7-14 08:45 PM:
現在討論緊地球問題

請不要分post!!!!! [E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang]

Echo21

Originally posted by 可愛的兔兒 at 2004-7-14 21:00:
請不要分post!!!!! [E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang][E-Ang]

已合併帖子
不要再犯了[E-Hap]

幻藍

Originally posted by Echo21 at 2004-7-14 09:13 PM:
已合併帖子
不要再犯了[E-Hap]

有好多人都唔識一次過引用2篇文章
以致成日分post
必須正視此問題

q9q9hkpokemon

不會增加的，
因為地球上的元素是固定的。
而且這個問題與生育率無關，
人只是吸收了食物中的化合物，
再把吸收了的化合物來令身體成長，
所以其中的質量不變。