Which of the following high-altitude features is a characteristic glacial depositional landform found commonly in the upper reaches of North Sikkim?

💡 Solution & Explanation

Moraines are accumulations of unsorted glacial debris, rocks, and sediment deposited by moving glaciers, commonly found in high-altitude glaciated valleys of North Sikkim such as near Gurudongmar and Yumthang. Atolls are coral reef structures found in tropical marine oceans, barkhans are crescent-shaped sand dunes formed by wind action in arid deserts, and stalactites are mineral formations hanging from limestone cave ceilings. Glacial moraines help geologists reconstruct past ice sheet boundaries and climatic fluctuations in the Himalayas.