Assertion: continent's area | /r/CapableOf | leave behind vast amount of salt
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text: A further insult to the soils is that vast areas have spent millions of years under shallow seas that receded and evaporated, only to return some millions of years later, only to dry out again, leaving behind a vast amount of salt that inhibits plant growth when it is brought to the surface by the clearing of deep-rooted native vegetation to grow shallow-rooted crops, allowing the water table to rise.