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- date unknown
Pollution has a disastrous effect on the ecology of a region.
- date unknown
linked to 188564
minshirui - Oct 23rd 2010, 14:12
linked to 581686
samueldora - Dec 8th 2010, 22:26
linked to 657103
shanghainese - Dec 11th 2010, 09:25
linked to 660715
nickyeow - May 22nd 2011, 12:11
linked to 903228
hundo - Jun 30th 2011, 00:58
linked to 966751
MrShoval - Aug 13th 2012, 21:23
linked to 1773053
Objectivesea - Jun 17th 2013, 19:31
linked to 2505034

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Sentence #25709

Pollution has a disastrous effect on the ecology of a region.

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