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← HistoryWhich environmental outcome resulted from initial maize cultivation expansion onto the Meseta Central plateau during the pre-classic period?
A)Increased slope erosion and sedimentation✓
B)Decreased regional rainfall and aridity
C)Expansion of highland cloud forests
D)Depletion of soil organic matter levels
💡 Explanation
When maize cultivation expanded, deforestation on steep slopes resulted because land was cleared for agriculture, leading to increased soil erosion due to loss of root structure, which led to higher sediment runoff. Therefore increased erosion and sedimentation resulted, rather than rainfall decrease, cloud forest expansion, or SOM preservation, that require different conditions and management strategies.
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