Friday, December 26, 2014

Pest

                           Any organism which is economically harmful to man is called as pest but ecologically none of organism in this universe is a pest. They are innocent animals and units of eco-system contributing a lot to sustain the eco-system. Man is sitting at the top of eco-system destroying it continuously for his survival and comfort. If any organism behaves like a pest, it behaves due to provocative conditions created by man.

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