Many deltas in the Eastern Coastal Plain together form what type of region?

Correct answer: Broad and fertile alluvial coastal plain

The direct answer is A: a broad and fertile alluvial coastal plain. On India’s eastern side, major rivers such as the Mahanadi, Godavari, Krishna, and Kaveri carry sediment from the interior. Near the Bay of Bengal, the rivers slow down and deposit this alluvium, often forming large deltas. Many deltaic areas together make the eastern coastal plain broad, level, and fertile, although local conditions vary. Option A is correct because it combines the main results of river deposition: wide lowlands and nutrient-rich alluvial soil. Option B is wrong because the eastern coastal plain is not a high, continuous mountainous coast; the Eastern Ghats are discontinuous and lie inland from much of the plain. Option C is wrong because coral reefs do not form the main eastern deltaic plain. Option D is wrong because glacial valleys are associated with high mountain regions, not the warm deltaic eastern coast. Exam cue: east coast equals broad deltas and fertile alluvium; west coast is generally narrower.