Which major physiographic division of India is related to land areas surrounded by water?
The governing geographical concept is the island group, or archipelago. An island is a naturally formed piece of land surrounded by water on all sides, and a collection of islands is called an island group. In India’s physiographic classification, the Andaman and Nicobar Islands in the Bay of Bengal and Lakshadweep in the Arabian Sea represent land areas separated from the mainland by water. Thus option A is correct. The Northern Plains are broad alluvial lowlands connected to the mainland; the Himalayas are a high mountain system; and the Peninsular Plateau is an elevated ancient rocky region. These three divisions are not defined as land enclosed by water. The answer follows from the physical definition of an island, not merely from the location of a particular Indian region.
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