Geography • Physical GeographyMedium
In the context of the geomorphological evolution of Kerala, how are the midland regions (Idanad) primarily characterized in terms of surface relief and terrain features?
A. Broad, flat alluvial floodplains dominated entirely by active deltaic deposition and annual silt accumulation
B. Steeply sloping, high-altitude mountain scarps covered with dense montane evergreen forests and rocky cliffs
C. Rolling hills and undulating mounds interspersed with narrow, fertile valley floors drained by westward-flowing streams✓ Correct Answer
D. Arid plateau surfaces formed by extensive basaltic lava flows and characterized by deep vertical canyons
💡 Solution & Explanation
The midland region of Kerala, known as Idanad, lies between the coastal plains and the high ranges, featuring rolling hills and broad valleys formed through the erosion of ancient crystalline rocks. Alluvial floodplains are confined to the low-lying coastal Kuttanad and coastal strips, not the midlands. Steep scarps belong strictly to the highland Sahyadri ranges. Basaltic plateaus are characteristic of the Deccan Traps in central India rather than the Precambrian terrain of southern Kerala. Laterite formation is widespread across these undulating midland hills.
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