Assertion :In India, the.east coast has more seaports than the west coast. Reason: The east coast is broader and is an example of emergent coast.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The eastern coasts cut through the three states viz. Tamil Nadu, Andhra Pradesh and Orissa. The Cauvery delta is most important sub region in Tamil Nadu and the Krishna Godavari Delta is most important landmark in Andhra Pradesh while the Mahanadi Delta is most important landmark in Orissa.
Eastern Coastal plain lies between the Eastern Ghats and the Bay of Bengal and is more extensive and wide than its western counterpart. They represent an emergent coast while it‘s western counterpart is an example of submerging coast. The region receives both the Northeast and Southwest monsoon rains with its annual rainfall averaging between 1,000 mm and 3,000 mm. The width of the plains varies between 100 to 130 kilometers. The region is wider, gets more rainfall, more hot and humid, more discontinuous and more fertile & irrigated in comparison to the western plains. At places the plains are bordered with dunes. Mangrove forests also grow in this region. Lagoons are also found here. This plain is broadly divided into:
1.Coromandal Coast: Ranges from Kanyakumari in Tamil Nadu to False Divi Point in Andhra Pradesh, which is just at the apex of the Krishna River delta.
2.The region between the Krishna and Mahanadi for which an old tem Northern Circars is sometimes used. Some classify it as Andhra Pradesh coastal plains.
3.Mahanadi Delta. Another broader term used is Utkal Coast, which also includes the Chilika Lake.