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MEDIUMENGLISHAgriculture

Fragile ecosystems cover:

AThe arid and semi-arid zones of the world, arid savannas of the tropics, the slopes of the mountains of the tropics

BAnd subtropics and forest areas of the developing world under shifting cultivation have been described as ‘Fragile Ecosystems’

CBecause their equilibrium appears to be easily upset and because they become ecologically degraded if certain forms of land use

DAll of the above

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