Answers

2014-05-23T18:47:00+05:30
Today man is being very selfish.he is only thinking of himself.he is doing those activities in which he gets a short timed happiness.but he is not thinking of the results.he just doing wrong without thinking.for example a woman wants to clean her home and after cleaning she throws the garbage outside and it pollutes her surrounding.by this she pollutes her surroundings.
man is polluting the nature by this works 
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2014-05-23T19:25:42+05:30
The main reason is that humans are misusing resources or using them in an indiscriminate manner
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