Explanations:The Andaman and Nicobar Islands are a group of islands located in the Bay of Bengal, forming a union territory of India. These islands are known for their diverse geographical features, including forests, beaches, and unique geological formations. Among these islands, Barren Island stands out due to its volcanic activity.
Barren Island is located in the South Andaman district and is the only active volcano in the Andaman and Nicobar Islands. The island is uninhabited due to its volcanic nature, which has led to its name "Barren Island." The island's volcanic activity has been recorded since the 18th century, with the most recent eruption occurring in 2017. The volcano is a stratovolcano, which is a conical volcano built up by many layers of hardened lava, tephra, and volcanic ash.
The presence of an active volcano on Barren Island is significant for several reasons. It provides valuable information for geologists and volcanologists studying the geological processes and volcanic activity in the region. Additionally, the island's volcanic activity has implications for the surrounding areas, including potential hazards such as ash fall and lava flows.
Other islands in the Andaman and Nicobar group, such as Havelock Island and Baratang Island, do not have active volcanoes. Havelock Island is known for its beautiful beaches and is a popular tourist destination, while Baratang Island is known for its mud volcanoes and limestone caves. Erimalai Island is a small uninhabited island that does not have any volcanic activity.
Understanding the geographical features of the Andaman and Nicobar Islands, including the presence of an active volcano on Barren Island, is important for students preparing for competitive examinations such as the UPSC, SSC, Bank PO, and State PSC. This knowledge helps in answering questions related to the geography and geology of the region.