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2015-07-23T22:56:12+05:30

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Land degradation occur due to
over grazing
mining
quarrying
over cultivation
over irrigation
deforestation
over ploughing
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2015-07-24T06:57:20+05:30
Over usage of fertilizers lead to ..
1.decrease the fertility of soil
2. microorganism will get distroyed
3.acdity  of soil increased
4.at last it will changes to desert
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