The Ten Degree Channel is the geographical waterway that separates the Andaman Islands and the Nicobar Islands, both of which are part of India’s Union Territory of Andaman and Nicobar Islands. This channel is significant as it demonstrates the geological and cultural distinctions between the two island groups; the Andaman Islands are primarily inhabited by diverse indigenous tribes and have a different topography and climate compared to the Nicobar Islands, which are influenced more by the Southeast Asian cultural and ecological backdrop. Understanding such geographical features is crucial in UPSC Prelims, as it relates to both physical geography and geopolitical awareness.