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Bumi yang tenat
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1. Manusia memusnahkan hutan-hutan sewenang-wenangnya
2. Manusia melakukan galian bumi yang tidak terancang
3. Habitat haiwan-haiwan dimusnahkan
4. Perindustrian menyebabkan pencemaran udara
This entry was posted on October 4, 2009 at 12:14 pm, and is filed under
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