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In olden days the people used many plants as medicine. so , they preserved the forest. the forest were categorised as : reserved forest, protected forest. they followed afforestation and there were some actions against the plants too. 
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Before 50 yrs all people were free from pollution& many health disorders
clean &  healthy environment . they grew & saved trees& plants. they were free from accidents& traumas.
there were full of prosperity &  wealth, they were happy in their regular works.
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