Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO地球你好吗？Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO大气污染Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO北京沙尘暴Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPROPresented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPROPresented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPROPresented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPROPresented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPROPresented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO＃Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPROPresented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO1. 自然物种在减少2. 自然景观遭到人为破坏3. 环境状况不容乐观Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO•造成自然物种灭绝的原因：除不可抗拒的自然历史及自然灾害还有人为人为因素 ，特别是人类对野生动植物资源的掠夺式开发和利用。•自然物种灭绝的危害：破坏了大自然的生态平衡，必然会危及人类自身。•捕杀、食用野生动植物的危害 : 导致生物物种灭绝绝，生态平衡被破坏，引起食物链上级和下级生物数量增多或减少；饮食不当容易中毒等。Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO 重庆遇罕见蝗灾 古老城紧急呼救 急需5000 条蛇2 万只麻雀20 万只青蛙今夏，重庆壁山县古老城遭受了罕见的蝗虫灾，铺天盖地的蝗虫像收割机一样把当地近千亩的农作物和果树林蚕食得面目全非。眼看数年心血就要化为泡影。目前，古老城人向外界地出求助：请支授我们 20 万只青蛙。 2 万只麻雀和 5000 条蛇Presented ByPresented ByHarry Mills /Harry Mills / PRESENTATIONPRO PRESENTATIONPRO•自然景观是大自然和祖先馈赠给我们...
