Mountains and Plateaus of India

The governing concept is the relationship between parent rock, weathering, and soil formation. Much of the black soil, or regur, of the Deccan Plateau developed from the weathering and decomposition of basaltic lava flows associated with the Deccan Trap. Basalt supplies clay-rich minerals and contributes to the soil's dark colour and moisture-retaining character. Therefore option B is correct. Coral rocks and marine sand are coastal materials, while glacial deposits are associated with formerly glaciated areas and do not explain the extensive Deccan black-soil belt. The answer follows the parent-material connection between basaltic lava and regur soil.

The governing concept is the geological age and origin of Indian mountain systems. The Himalayas are young fold mountains formed by the continuing convergence of the Indian and Eurasian tectonic plates, so they are geologically young and still tectonically active. The Aravalli Range is one of the oldest fold mountain systems of the Indian subcontinent and has been greatly worn down by erosion. Therefore option C is correct. Option A reverses the comparison, while B incorrectly assigns a coral origin to both ranges. Option D confuses these mountain systems with the basaltic lava formations of the Deccan Trap.

The governing concept is orographic, or relief, rainfall. During the southwest monsoon, moisture-laden winds from the Arabian Sea move towards the west coast. The Western Ghats form a significant elevated barrier, forcing these winds to rise along their windward slopes. As the air rises, it cools, condensation occurs, and heavy rainfall develops on the western side. Therefore option D is correct. The Ganga Plain is far from the relevant barrier, Thar's sandy winds do not produce this mechanism, and the Ghats are not underwater. Rainfall is especially high where moist air meets steep relief, which explains the physical cause.

The governing concept is the continuity and drainage pattern of Peninsular hill systems. The Eastern Ghats are discontinuous because major rivers flowing eastward to the Bay of Bengal, including the Mahanadi, Godavari, Krishna, and Kaveri, have cut across and dissected them. Consequently, the range appears broken into separate sections. Option A is correct. The Eastern Ghats are not higher than the Himalayas, so B is false; they are an old hill system rather than coral reefs, so C is false; and they are not permanently snow-covered, so D is false. River erosion and dissection explain the contrast with the more continuous Western Ghats.

The governing concept is the arrangement of Central Indian ranges and rift valleys. The Narmada flows westward through a structural rift valley lying between the Vindhya Range to the north and the Satpura Range to the south. Hence option B is correct. This position is also useful for distinguishing the Narmada from many major east-flowing Peninsular rivers. Option A places the valley incorrectly beyond the Vindhya, option C invents a marine location south of Satpura, and option D shifts it to the distant Meghalaya Plateau. The relative north-south position of the two ranges provides a direct and unambiguous way to identify the Narmada Valley.

The governing concept is the classification of India’s major physiographic divisions. The Meghalaya Plateau is geologically linked with the ancient Peninsular Plateau, but it is separated from the main peninsular block by the alluvial plains of the Ganga and Brahmaputra systems. Therefore, it appears as an isolated north-eastern projection rather than as a continuous part of the Deccan region. Option A is correct because it states both the relationship and the isolated location. The Western Ghats are a western coastal escarpment, so B is unrelated. C describes a desert landform, while D incorrectly places this plateau in the highest Himalayan belt. The Garo, Khasi and Jaintia Hills form important parts of this plateau.

The governing concept is the relationship between physical regions and resource-based economic activity. The Chota Nagpur Plateau contains extensive deposits of coal, iron ore, mica, bauxite and other minerals. Coal supports thermal power and industries, while iron ore supplies the iron and steel sector. This combination has encouraged mining, metal processing, engineering and transport development, making the region an important mineral and industrial belt. Option C is therefore correct because it identifies minerals and energy resources as the foundation of its economic importance. Marine fishing belongs to coastal waters, coral islands are a coastal or oceanic feature, and glacial tourism is associated with high mountain environments, so A, B and D do not explain the plateau’s main economic role.

The governing concept is the location and intersection of India’s southern mountain systems. The Nilgiri Hills lie in southern India near the junction where the Western Ghats and Eastern Ghats meet, especially around the borders of Tamil Nadu, Kerala and Karnataka. Their elevated landscape includes well-known places such as Ooty, and Doddabetta is their highest peak. Option D is correct because it gives the defining regional location. The Thar Desert is a north-western arid region, the Ganga Plain is a broad alluvial lowland, and Ladakh belongs to the Trans-Himalayan mountain system. Those regions have different relief, climate and geological settings, so A, B and C cannot identify the Nilgiris.

The governing concept is the north-to-south division of the Himalayan mountain system. From north to south, the principal parallel ranges are the Great Himalaya or Himadri, the Lesser Himalaya or Himachal, and the Shiwalik. The Shiwalik is the youngest, lowest and outermost belt, located south of the Lesser Himalaya and close to the northern edge of the plains. Therefore, option B, Outer Himalaya, is correct. Option A refers to the highest snow-covered inner range, while option D refers to the intervening Lesser or Middle Himalayan belt. Option C is also different: the Trans-Himalaya lies north of the main Himalayan ranges and includes systems such as the Karakoram, Ladakh and Zanskar. Their positions and structure distinguish them clearly.

The governing concept is the structural division of the Himalayas into parallel ranges. Himadri, also called the Great or Inner Himalaya, is the northernmost and highest principal range of the Himalayan system. It contains many permanently snow-covered peaks and includes the region of some of the world’s highest mountains. Option A is correct because its exceptional height and continuous high mountain character explain the name Great Himalaya. The Deccan Plateau is a separate ancient peninsular landform, so B is geographically unrelated. The Eastern Ghats are a different hill system, making C incorrect. Aravalli is an old range of western India, and a sandy part of it has no connection with Himadri; hence D is also wrong.

The governing concept is the distinction between the main Himalayan ranges and the ranges lying beyond them to the north. The Trans-Himalaya is a high, cold mountain region north of the Great Himalaya. It includes the Karakoram, Ladakh and Zanskar ranges and has a dry climate because many areas lie in the rain shadow of the higher mountains. Option B is therefore correct. The Eastern Ghats are discontinuous hills along parts of eastern peninsular India. Satpura is a central Indian range, while the Malwa Plateau is a volcanic upland rather than a Himalayan range. Their locations and landforms are completely different, so A, C and D cannot describe this group.

The governing concept is the effect of gaps and passes on relief, transport and regional connectivity. The Palghat Gap is a broad natural break in the Western Ghats between the Nilgiri Hills to the north and the Anaimalai Hills to the south. Because the mountain barrier is lower and more open at this point, routes can pass between Kerala and Tamil Nadu, supporting road, rail, trade and movement of people. Option C is correct. It is not a peak of the Aravalli, so A is wrong; it is not an ice feature of the Himalayas, so B is wrong; and it has no physical connection with the Ganga Delta, making D incorrect.

The governing concept is the continuation and change of the Himalayan system toward north-eastern India. After the Himalayas bend sharply near the eastern end, their ranges continue southward and south-eastward as the Purvanchal Hills. This group includes the Patkai, Naga, Manipur, Mizo and related hills, which form an important arc along India’s north-eastern border. Option D is correct because it identifies them as the eastern extension of the Himalayas. The Aravalli belongs to western India, the Deccan lava region is a peninsular plateau, and the southern Western Ghats lie far to the south-west. Thus A, B and C refer to unrelated landforms and cannot explain the regional identity of Purvanchal.

The governing concept is orographic rainfall caused by the interaction of monsoon winds with relief. Cherrapunji and Mawsynram lie in the Khasi Hills of Meghalaya, where moisture-laden winds from the Bay of Bengal are funnelled toward the steep hills. The hills force the air to rise; rising air cools, condenses and produces very heavy rainfall. This relief-and-monsoon interaction explains their global reputation for exceptionally high rainfall. Option A is correct. Black soil is a soil characteristic, not the reason for the rainfall record; coral reefs are marine formations, and glaciers occur in permanently cold high mountains. Therefore B, C and D do not explain the importance of these Khasi Hills locations.

The governing concept is the combined influence of altitude and the Himalayan rain-shadow effect. Ladakh is a high plateau beyond the main Himalayan rain-bearing barriers. Moist monsoon winds lose much of their water before reaching it, so precipitation is very low. At the same time, great elevation produces low temperatures, especially in winter, even though strong sunshine may occur during the day. The combination of scanty moisture, sparse vegetation, rugged terrain and severe cold gives Ladakh the character of a cold desert. Option C correctly states these defining conditions. It is inland rather than coastal, so A is wrong; it is not a tropical forest, and it is not part of the Ganga Delta, making B and D incorrect.

Maikal and Mahadeo Hills are important subdivisions or associated hill groups of the Satpura mountain system in central India. The identification can be made by placing both names within the central Indian highland belt rather than the coastal or Himalayan regions. Mahadeo Hills are linked with the Pachmarhi area, while the Maikal Range extends near the eastern part of the Satpura system. Therefore, option B is correct. Option A is incorrect because the Eastern Ghats are a separate discontinuous range along the eastern side of India. Option C confuses a hill system with desert landforms, and option D refers to glacial features of the high Karakoram.

The Malwa, Bundelkhand, and Baghelkhand plateaus are regional divisions of the upland area of central India and are commonly studied as parts of the northern Peninsular Plateau. Their location and relief distinguish them from coastal plains, island coral formations, and enclosed mountain valleys. Malwa lies mainly in the west-central part of the country, Bundelkhand occupies an area around Uttar Pradesh and Madhya Pradesh, and Baghelkhand lies farther east in the central Indian plateau belt. Thus option C is correct. Option B is not suitable because the eastern coastal plain is a low, narrow strip beside the Bay of Bengal, while options A and D describe entirely different physical regions.

The Karnataka and Telangana plateaus are regional divisions of the Deccan Plateau, which forms a major part of the Peninsular Plateau of India. They are located in the southern interior and are characterized by elevated, relatively level or gently undulating terrain rather than by Himalayan relief or coastal water bodies. Therefore option B is correct. The Karnataka Plateau occupies much of the interior of Karnataka, while the Telangana Plateau lies mainly in the Deccan interior around Telangana. Option A is wrong because neither belongs to the Himalayan mountain system. Options C and D describe coastal or island environments, not inland plateau regions. The broad hierarchy is Peninsular Plateau → Deccan Plateau → Karnataka and Telangana regional plateaus.

Anamudi, Agasthyamalai, and the Cardamom Hills belong to the southern section of the Western Ghats, also called the Sahyadri in many geographical contexts. This region extends across parts of Kerala and Tamil Nadu and contains high, ecologically important mountain landscapes. Anamudi is a prominent high peak of the southern Western Ghats, while Agasthyamalai and the Cardamom Hills are nearby southern hill groups. Thus option C is correct. The Purvanchal Hills are in northeastern India, the Aravalli lies mainly in western India, and the Vindhya system is farther north in central India. Their locations and geological settings do not match the three names in the question.

The Baba Budan Hills and Kodagu Hills are both associated with the Western Ghats in Karnataka. They form part of the elevated, dissected highlands of southern India and are known for rich vegetation and important plantation landscapes, including coffee cultivation in suitable areas. This shared location and mountain-system relationship makes option C correct. The Aravalli region belongs mainly to western India and has a different geological and geographical setting. The Ganga Plain is a low alluvial plain rather than a hill system. The Barail Hills are located in the northeastern region around Assam and are not part of Karnataka’s Western Ghats. Thus the state and range association clearly identifies the correct answer.

The correct answer is D, the Eastern Ghats. Mahendragiri in Odisha, together with the Shevaroy Hills and Javadi Hills of Tamil Nadu, represents hill groups associated with the discontinuous Eastern Ghats system along peninsular India’s eastern side. The Eastern Ghats are not one unbroken wall because major rivers such as the Mahanadi, Godavari, Krishna, and Kaveri cut across them. The Western Ghats are a different, more continuous escarpment on the western side. Aravalli belongs mainly to northwestern India, while the Karakoram is a high trans-Himalayan range, so neither fits these three hill examples.

The correct answer is A, mineral resources. Singhbhum and the Chota Nagpur Plateau, located mainly in and around Jharkhand, are among India’s important mineral-bearing regions. Singhbhum is especially well known for iron ore, while the wider Chota Nagpur area contains coal, mica, bauxite, manganese, and other minerals. This resource pattern is linked to the ancient hard crystalline rocks of the plateau. Coconut groves are a coastal tropical feature, marine coral develops in shallow warm seas, and glacial ice belongs to high mountain environments. Those distractors describe different physical settings and cannot explain the economic identity of Singhbhum and Chota Nagpur.

The correct answer is C, the Trans-Himalayan region. The Zanskar, Kailash, and Ladakh ranges lie north of, or beyond the main Himalayan ranges and are therefore studied as part of the Trans-Himalaya. These ranges are characterized by very high, dry, cold landscapes and include the mountainous setting of Ladakh. The Eastern coastal plain is a low-lying strip beside the Bay of Bengal, not a high mountain system. The southern Western Ghats occur along peninsular India, while the Deccan Trap is a basaltic plateau formed by extensive lava flows. Their locations and geological identities are therefore different.

The correct answer is A, the Karakoram Range. Godwin Austen is the name commonly associated with K2, one of the world’s highest peaks, located in the Karakoram. In Indian geography questions, the name is used as a key clue for the high mountain system of the northwestern Trans-Himalaya. Satpura is a much lower central Indian range, while the Eastern Ghats are discontinuous hills of peninsular eastern India. The Aravalli is an ancient, relatively low and eroded range in northwestern India. Therefore, the peak-region association, rather than merely the word ‘mountain,’ identifies Karakoram as the only correct option.

The correct answer is B, the plateau region of Central India. Baghelkhand and the Rewa Plateau are associated with the northeastern part of the central Indian upland, especially the Vindhyan and adjoining plateau landscape. Rewa lies in present-day Madhya Pradesh, and the region has a dissected plateau character rather than a coastal or glacial one. Kerala’s coastal part is a low plain beside the Arabian Sea, Sikkim’s glacial terrain belongs to the high Himalaya, and Lakshadweep is an island group built largely on coral formations. These alternatives differ in location and landform, so the central Indian plateau classification is the only suitable answer.