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  • معلومة اضافية
    • الموضوع:
      AMAZON River Valley
    • الموضوع:
      NATURE (Periodical); PNAS (Periodical)
    • نبذة مختصرة :
      The article offers science news briefs on topics including a report in the journal "Nature" suggesting increased use of natural gas will not aid the environment, a study that found new U.S. junk food offerings have had less calories that existing products, and a survey in the journal "PNAS" that found Amazon deforestation decreased since 2004 but had leveled off.