Tag: geography

• Atoll which is also called as coral atoll is a ring shaped reef including rim which is present around a lagoon. These can be either circular or horse shoe shaped.
  
• Most of the world’s atolls are located in Pacific Ocean. The Saya de Malha Bank is the largest atoll that is present in western Indian Ocean.
  

The difference in a rock formation is responsible for the variation in the color of the soil in different parts of India. Rocks are made up of different minerals. Soils are dynamic, forming continuously over a long period of time. Soil types differ, depending on the parent materials from which they came and from the surrounding environment. Soil is a complex mixture of minerals (approximately 45%), organic matter (approximately 5%), and empty space (approximately 50%, filled to varying degrees with air and water). The mineral content of soils is variable but is dominated by clay minerals and quartz, along with minor amounts of feldspar and small fragments of rock.

• Barren Island is an island located in the Andaman Sea.
  
• It is the only confirmed active volcano in South Asia. 
  
• It is a part of the Andaman and Nicobar Islands, and lies about 138 km (86 ml) northeast of Port Blair.
  

Narcondam is a small volcanic island located in the Andaman Sea. The island's peak rises to 710 m above mean sea level, and it is formed of andesite. Narcondam islands are supposed to be dormant volcano whereas Barren is still active. India’s only active volcano is the Barren Islands volcano located in the Andaman and Nicobar Islands.

 Duncan pass is located between South and little Andaman. Duncan Passage is a strait in the Indian Ocean. It is about 48 km (30 mi) wide; it separates Rutland Island (Great Andaman) to the north, and Little Andaman to the south.

India's smallest Union Territory Lakshadweep is an archipelago consisting of 36 islands with an area of 32 sq km.

The Onge  are one of the Andamanese indigenous peoples of the Andaman Islands. Traditionally hunter-gatherers, they are a designated as a Scheduled Tribe of India.

The Lakshadweep and Andaman and Nicobar islands are two major archipelagos of India. They are classified as Union Territories (UTs). The Lakshadweep islands lie in the Arabian Sea off the Kerala Coast and have a total area of 32 km making them the smallest UT in India.