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The Ten Degree Channel is a channel that separates the Andaman Islands and Nicobar Islands from each other in the Bay of Bengal. The two sets of islands together form the Indian Union Territory (UT) of Andaman and Nicobar Islands. This channel is 150 km wide from north to south, and approximately 10 km long from east to west. It is so named as it lies on the 10-degree line of latitude, north of the equator. It is said that when Western Trade wind was used by Arabians they crossed through this channel in fifteenth Century.