In which physical division of India are sand dunes commonly found?

Correct answer: Indian Desert

The direct answer is D, the Indian Desert. Sand dunes are hills or ridges of loose sand formed when wind moves and deposits sand. The Indian Desert, commonly called the Thar Desert, is a hot, dry region where little rainfall and strong winds allow dunes to develop. Option D is correct because sand dunes are a characteristic landform of this desert. Option A, Coastal Plains, may have beaches and coastal sand, but the question asks for the physical division where desert sand dunes are commonly found. Option B, Island Groups, are surrounded by water and are not the usual answer for inland desert dunes. Option C, the Himalayas, are high mountains with different rocky and snowy landforms, not a typical dune region. Step by step: identify ‘sand dunes’, connect them with wind and dry desert, then choose Indian Desert. Memory cue: dunes = dry wind = Thar.