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  1. J

    Help me about Biology and earn 10 Points!?

    What is: -Biosphere: *How man can affects the ecology and ecosystem -Nutrient cycles: *Water cycle and carbon cycle -Food chain / web energy flow -Is man constructive or destructive to the nature? Why? Thanks before!
  2. J

    Do any one know what's the song?"yin wei wo men shi yi jia ren xiang qin xiang ai de...

    ...yi jia ren...."? I have been looking for everywhere to find this song please help me!
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