(i) The Indian Desert - It is an important physiographic division of India. Some of its features are as follows:
(a) It covers almost the whole of Rajasthan state.
(b) It lies towards the western margins of the Aravali Hills.
(c) Its vast expanse is covered with sand dunes which their shape day in and day out.
(d) This region receives very little rainfall which is below 150 mm so; there are very few streams in this area.
(e) It has arid climate with very little vegetation.
(f) During the rainy season small streams are sometimes seen for a short-while which disappears again in sand after the rains are over.
(g) Luni is the only large river in this area.
(h) Crescent shape dunes which are called Barchans are a prominent feature of the Indian desert.
(i) Camel is the most important animal of this desert.
(ii) The Central Highlands - The northern division of the Peninsular Plateau lying to the north of the Narmada River covering a major area of the Malwa Plateau is known as the Central Highlands. The Vindhayas and its eastern extensions divide the Central Highlands from the Deccan Plateau in the southern side. In its west lies the rocky desert of Rajasthan, in the north-west it is bounded by the Aravalis, in the north lays the Gangetic Plain and in the east it is surrounded by part of UP and south Bihar. Most part of the Central Highlands consists of the Malwa Plateau and the Chhotanagpur Plateau. The eastward extensions are known as theBundelkhand and Baghelkhand.
