通識科 - 水資源

fly4407211

淡水越來越少 真系要珍惜

pacificlub

over population is the human beings problem, really don't know how to control!!!

Williamho1953

pacificlub 發表於 2013-4-16 11:01

                               
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over population is the human beings problem, really don't know how to control!!!

China + India = half of world's population. Don't know why Chinese's one child policy still creates population blooming !

馬後砲

Williamho1953 發表於 2013-4-16 17:33

                               
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China + India = half of world's population. Don't know why Chinese's one child policy still create ...

隨著医藥發達, 科技亦使糧食沒有短缺問題,
人的寿命越來越長, 人口自然不斷增多