Explain the origin of Indian islands in the Bay of Bengal and the Arabian Sea.
Introduction
Island refers to a piece of land surrounded by water on all four sides. Indian territory comprises of 612 islands, located in Arabian sea and Bay of Bengal.
28 words
Main Body
Origin of Indian Islands
(i) Bay of Bengal
-> Andaman and Nicobar islands are found off the coast of Eastern India.
-> These islands are volcanic in origin, formed due to tectonic movement of plates.
-> As the Indian plate collided
with Eurasian plate, syntaxial bend developed near Namcha Barwa, led to N-S orientation of Purvanchals.
-> Andaman & Nicobar are considered to be the extension of himalayan orogenisis, geologically matching the Arakan mountains of Myanmar.
-> Barren Island -> only live volcano of India, part of under sea volcanic mountain chain, the upraised part of which forms the Andaman & Nicobar islands.
[diagram: N.E. India -> Arakan mts (Myanmar), showing BOB and A&N]
(ii) Arabian sea Islands
-> Lakshadweep islands, located
480 km off the Malabar coast, comprises of 43 islands, only 11 are inhabited.
[diagram: Hill -> reef -> lagoon; and Atoll with lagoon]
Conclusion
Therefore, the islands of India have unique geomorphology and are enriched with abundant natural resources, heritage of humans.
18 words
Diagram
Map of India showing location of islands, with Arabian Sea marked with Lakshadweep and Bay of Bengal marked with Andaman & Nicobar
- Good diagram of India with island locations
- Clear structure by region
Ritika Chitlangia
Geography
Physical Geography - Islands
Origin of Indian islands - Bay of Bengal
247
Total words
2
Paragraphs
structured, point-wise
Tone