Answers

2014-06-18T20:02:04+08:00
It is mainly because of the human beings
Improper disposal and lack of knowledge 
Ignorance also contribute to this the same to our attitude
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2014-06-18T20:27:50+08:00
Because we humans dont know how to dispose our garbage properly. We tend to forget to plant trees that will make our environment clean. Thats the reason why our 
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