第1个回答 2012-03-03
Destroying the dam is more threatening to the animals than not destroying it, becasue garbages thrown by the tourists every year caused serious pollution to the enviroment, which brought even more threats than exotic species.
第2个回答 2012-03-03
Don't open the dam down the more threat than the wild animals, because when you play in the lake every year visitors by the garbage pollution to the environment is very serious, the threat of fish in the lower than exotic species more
第3个回答 2012-03-03
Due to the serious eviornment pollution from tourists' garbage, dam creates more threats for wild animals/fishes in the lack than exotic species.本回答被提问者采纳
第4个回答 2012-03-03
Do not remove dam than removed dam more threats to wild animal in the lake, because every year visitors play caused by waste on the environment pollution is very serious, on the downstream side of the fish species greater threat than exotic species.