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SubjectsGeography
तटीय मैदान और द्वीप
In this Class 9 Geography topic from Physical Features of India, students explore how India’s coastal plains and islands were formed and how they differ in location, relief, and physical features. They study the Western Coastal Plain along the Arabian Sea and the broader Eastern Coastal Plain along the Bay of Bengal, including important rivers, deltas, lagoons, and coastal processes. The topic also introduces the Andaman and Nicobar Islands and Lakshadweep, highlighting their geographical setting, natural environment, and importance to India.
TOPIC PRACTICE
Up to 2 questions from this page. Select your focus, then start.
Long eastern rivers form deltas while short steep western rivers mostly form estuaries. Exam tip: understand river slope and deposition together.
View question detailsOption A is correct because the total coastline is obtained by considering the coastline of the mainland together with the coastlines of India’s islands. Islands have their own shores, bays, inlets, and coastal curves, so their lengths add to the national total rather than replacing or reducing the mainland coastline. The mainland itself has a long coastline along the Arabian Sea, the Indian Ocean, and the Bay of Bengal. Coastline is a length and is expressed in kilometres, not square kilometres, which measure area. Therefore, separating mainland and islands helps explain why the total coastline is greater than the mainland figure alone.
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