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Context: Port City's famous 'Erra Matti Dibbalu' (Red sand dunes) that was declared as a Geo Heritage Site by the Geological Survey of India in Visakhapatnam on April 16, 2016.
Erra Matti Dibbalu or coastal red sediment mounds
Man-made interference
Red sands are being exploited for construction activity.
Way forward:
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