Pakistan is predominantly a dryland country, with 80% of its land arid or semi-arid, 12% sub-humid and 8% humid, so its soils are vulnerable to many degradation processes. As in south-central Asia and sub-Saharan Africa, which of these are major causes of soil degradation and desertification?
Correct answer D. All of the above
Explanation
In drylands, drought stress, accelerated erosion, salinisation and loss of fertility and organic matter interact and reinforce each other, together driving soil degradation and desertification.
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