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  1. ... or it might have catastrophic results on our environment. Acid rain is caused by air pollution, which is Scientists have discovered that air pollution ...

    分類:科學及數學 > 地理學 2007年02月15日

  2. ... a bit earlier than scientists believed. An unknown...riverbed. The tracks were found in the same region of... added. "We had the footprints... ...

    分類:科學及數學 > 地理學 2007年10月15日

  3. ...1950 onward.[ These basic conclusions have been endorsed by at least 30 scientific societies....[8][9][10] While individual scientists have voiced ...

    分類:科學及數學 > 地理學 2008年11月19日

  4. ...and nitrogen oxides. Diesel trucks are the biggest vehicle polluters, accounting... Lau Kai-hon, an atmospheric scientist at the University of Science ...

    分類:科學及數學 > 地理學 2007年09月29日

  5. ..., 427 mammals, 427 amphibians, and 378 reptiles have been scientifically classified in the region [2]. Scientists have described between 96,660 and ...

    分類:科學及數學 > 地理學 2007年02月05日

  6. ...volcanologist most attention. When we can not prevent the eruption property damage... volcanic eruptions are unpredictable, but there are some...central ...

    分類:科學及數學 > 地理學 2014年08月14日

  7. ... as well as tents, water, medicine and other supplies. Scientists said the earthquake was a megathrust, which is similar to the catastrophic Indian ...

    分類:科學及數學 > 地理學 2007年09月16日