Ganga Plain has been described as a
Detailed Explanation:
The Ganga Plain is a geosyncline—a large, linear depression filled with thick sediments from the Himalayas over millions of years. The Indo-Gangetic trough formed between the stable Peninsular shield and the rising Himalayas, accumulating over 6,000 meters of alluvium.
A pediplain is an erosional plain in arid regions; a peneplain is a low-relief surface from prolonged erosion; and a karst plain features limestone dissolution landforms—none describe the depositional Ganga Plain.
Therefore, the Ganga Plain is a geosyncline, making Option 3 the correct answer.
Question 2 of 2 Northern Plains
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Average height of Kosi Plain from mean sea level is
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