Mountains and Plateaus of India

Correct answer: D. They are places in Maharashtra’s Western Ghats region

The governing concept is the regional naming of the Western Ghats. In Maharashtra and adjoining parts of the western Deccan, the Western Ghats are widely known as the Sahyadri range. Mahabaleshwar is a prominent hill station and highland area, while Lonavala and Khandala are associated with the escarpment and valleys of the Maharashtra Western Ghats. Hence option D correctly identifies their geographical setting. Option A is incorrect because Sikkim belongs to the eastern Himalayas. Option B refers to the Aravalli system of north-western India, and option C describes a riverine landform of Assam, not a mountain region. The place names and their regional location together support D.

Correct answer: A. Western Ghats region of Karnataka

The governing concept is the identification of regional hill groups within Peninsular India. Baba Budan Hills, Kodagu or Coorg highlands, and Kudremukh are all located in or connected with the Western Ghats of Karnataka. Their humid slopes, deeply dissected relief, forest cover, coffee-growing areas, and mineral-bearing uplands are characteristic of this part of the peninsular mountain system. Therefore, option A is correct. The Aravalli region in option B lies mainly in north-western India, while the Barail hills in option C belong to the north-eastern hill system. Option D is a broad alluvial plain formed by the Ganga and is not a mountainous region. The common state and physiographic setting make A the only suitable answer.

Correct answer: B. Eastern Ghats

The governing concept is the distribution of discontinuous hill ranges along the eastern side of the Peninsular Plateau. Mahendragiri, Shevaroy, and Javadi are recognized hill groups of the Eastern Ghats. Unlike the relatively continuous Western Ghats, the Eastern Ghats are broken into separate sections by rivers such as the Mahanadi, Godavari, Krishna, and Kaveri. Thus option B is correct. The Western Ghats in option A lie along the western edge of the Deccan Plateau. The Aravalli range in option C is an old mountain system of north-western India, while the Karakoram in option D is a high trans-Himalayan range. The location and discontinuous character of these named hills point clearly to the Eastern Ghats.

Correct answer: C. They are plateau-mineral regions linked with Jharkhand and Chota Nagpur

The governing concept is the relationship between India’s ancient plateau rocks and its mineral belts. The Rajmahal Hills and the Singhbhum region are parts of eastern India’s old peninsular highlands and are closely associated with the Jharkhand and Chota Nagpur plateau setting. Ancient crystalline and volcanic rocks, together with geological processes operating over a very long time, help explain the concentration of coal, iron ore, copper, and other minerals in the wider region. Therefore, option C is correct. Options A and D describe coastal or marine landforms, while option B refers to glacial features of the Himalayas. The plateau location and mineral-bearing geology, not coastal or glacial origin, provide the correct explanation.

Correct answer: D. They are Vindhyan mountain-plateau units of Central India

The governing concept is the subdivision of the Vindhyan highlands in central India. The Kaimur and Bhander ranges or escarpment-like uplands are recognized as parts of the broader Vindhyan system, which extends across central and north-central India and is associated with extensive sedimentary plateau surfaces. Their location and relief connect them with the physical geography of Madhya Pradesh, Uttar Pradesh, Bihar, and adjoining areas. Hence option D is correct. Option A refers to the Nilgiri highlands of southern India, option B to the trans-Himalayan Karakoram, and option C to coral islands in the Arabian Sea. None of those settings matches Kaimur and Bhander. Their central Indian plateau identity is the decisive clue.

Correct answer: A. They represent old rocky and mineral-rich terrains

The governing concept is the geological antiquity of the Peninsular Plateau. Dharwar and Singhbhum are among India’s important ancient shield regions, composed largely of very old crystalline rocks formed during early stages of the earth’s geological history. These rocks have undergone prolonged weathering, deformation, and mineralization, so the regions are important for iron ore, gold, manganese, copper, and other mineral resources. Therefore, option A is correct. Coral islands in option B are young marine landforms, while the Ganga alluvial plains in option C are much younger depositional surfaces. Option D refers to the outer Himalayas, a younger mountain system with a different geological origin. Ancient rocks and mineral wealth are the key clues.

Correct answer: B. Deccan Plateau and western peninsular region

The governing concept is the arrangement of hill ranges within the Deccan and western Peninsular Plateau. The Balaghat and Harishchandra ranges are associated with the uplands and escarpments of the western Deccan, especially the Maharashtra–Karnataka physical region. They are therefore studied as peninsular plateau relief features rather than Himalayan or deltaic landforms. Option B is correct. Option A is unsuitable because these ranges are not glacial features of the Himalayas. Option C identifies the Garo Hills of Meghalaya, which belong to the north-eastern hill region. Option D is a low depositional delta formed by the Ganga and Brahmaputra, not an elevated rocky plateau. Their peninsular location and plateau relief provide the decisive basis for choosing B.

Correct answer: C. Altitude, moisture, and varied habitats

The governing concept is the relationship between relief, climate, and habitat diversity. The Western Ghats rise sharply from the coastal plains, causing moist monsoon winds to ascend and produce substantial orographic rainfall on their windward slopes. Differences in altitude, slope, exposure, temperature, rainfall, soil, and drainage then create many ecological niches over a relatively short distance. These varied habitats support exceptionally rich plant and animal life, making the region a recognized biodiversity hotspot. Therefore, option C is correct. Sandy plains alone cannot explain the range of habitats, and the Western Ghats are not covered by glaciers. Coral reefs are marine formations and do not form on ordinary mountain slopes. The combined effects of elevation and moisture are the decisive physical explanation.

Correct answer: D. Reduction in the impact of cold Central Asian winds

The governing concept is the climatic role of the Himalayas as a high mountain barrier. In winter, the Himalayas obstruct the southward movement of extremely cold continental air masses from Central Asia toward the Indian subcontinent. This reduces their direct influence over the plains and helps India retain a comparatively milder winter climate than would otherwise be expected at similar latitudes. Therefore, option D is correct. The other choices do not describe a climatic barrier: coral formation is a marine biological process, the Eastern Ghats do not join the Himalayas, and the Aravallis are an ancient worn-down range rather than a newly formed fold system. The blocking of cold Central Asian winds is the clearest result named in the options.

Correct answer: A. Steep mountain edge

The correct answer is A because the Western Ghats form a steep and fairly continuous escarpment along the western margin of the Deccan Plateau. An escarpment is a pronounced slope or mountain-like edge separating higher land from a lower coastal plain. Their western side faces the Arabian Sea, while the plateau lies to their east. This relief arrangement also influences drainage, transport routes, settlement, and the distribution of rainfall. Option B is a coastal water body, not a mountain edge; option C is a depositional plain associated with the Ganga basin; and option D is an ice feature found in high mountain environments. Thus, the governing concept is the contrast between a plateau margin and a coastal mountain barrier.

Correct answer: B. Monsoon rainfall barrier on western coast

The correct answer is B. The Western Ghats extend more continuously along the western side of peninsular India than the discontinuous Eastern Ghats. When moisture-bearing southwest monsoon winds arrive from the Arabian Sea, this elevated barrier forces air to rise. Rising air cools, condenses, and produces substantial orographic rainfall on the windward, western slopes. The leeward Deccan interior receives less rain in a rain-shadow zone. Option A concerns river deposition in the Ganga basin, not the continuity of the Ghats. Option C is unrelated to this mountain barrier, and option D is geographically impossible because Ladakh is a high inland region far from coral-forming marine conditions. Therefore, continuity strengthens the western-coast monsoon barrier effect.

Correct answer: C. Both are Ghats-related hill parts of South India

The correct answer is C. The Nilgiri Hills and the Annamalai Hills are important highland groups of southern Peninsular India and are associated with the Western Ghats system. The Nilgiris lie near the meeting zone of the Western and Eastern Ghats, while the Annamalai Hills are farther south in the Western Ghats region. Their location, relief, and ecological conditions show that they are Ghats-related hills rather than Himalayan or plain features. Option A is incorrect because neither group belongs to the outer Himalayas. Option B describes desert landforms, and option D refers to a low depositional delta. The governing idea is regional physiography: both are elevated hill masses of southern India, even though their exact locations and local relationships differ.

Correct answer: D. Himalayas are linked with compression and Deccan with lava flows

The correct answer is D. The Himalayas are young fold mountains formed when the Indian Plate moved northward and compressed marine and continental sediments against the Eurasian Plate. Their origin is therefore connected with tectonic convergence, folding, uplift, and continuing mountain building. The Deccan Plateau, in contrast, is a broad ancient shield region whose large basaltic areas were produced mainly by extensive volcanic lava flows, especially during the Deccan volcanic episode. Option A reverses or invents origins, while B and C misidentify both landforms. The important comparison is compressional folding for the Himalayas versus volcanic basaltic construction for the Deccan Plateau.

Correct answer: A. Ladakh Plateau

The correct answer is A, Ladakh Plateau. Ladakh is a high-altitude region in the Trans-Himalayan zone, enclosed by major mountain ranges and lying largely in the rain shadow of the Himalayas. Moisture-bearing monsoon winds lose much of their moisture before reaching this interior area, so precipitation is low and the landscape is arid. Because temperatures remain low at high elevation, Ladakh is described as a cold desert rather than a hot desert. The Meghalaya Plateau is known for heavy rainfall, while the Malwa and Karnataka plateaus are lower peninsular regions with different climates and soils. The combined clues—great elevation, dryness, and cold conditions—therefore point specifically to Ladakh.

Correct answer: B. Deccan Plateau

The correct answer is B, the Deccan Plateau. Much of the Deccan is underlain by basaltic lava flows, and the weathering of this basalt has produced extensive black soil, also called regur. This soil has a high clay content, retains moisture effectively, and is particularly suitable for cotton cultivation when other conditions are favourable. The combination of basalt, black soil, and cotton is therefore a classic geographical association with the Deccan Trap region of peninsular India. The Khasi Hills are mainly linked with the Meghalaya uplands and very heavy rainfall; Himadri is the highest Himalayan range; and the Aravalli is an old fold mountain system with different rock and soil associations. Hence all three clues converge on option B.

Correct answer: D. Guru Shikhar

The correct answer is D, Guru Shikhar. Guru Shikhar is the highest point of the Aravalli Range and stands in the Mount Abu region of Rajasthan. Its elevation and location make it an important fact in Indian physical geography. Dhupgarh is associated with the Satpura Range and Pachmarhi in Madhya Pradesh. Doddabetta is a prominent peak of the Nilgiri Hills in Tamil Nadu, while Anamudi lies in the Western Ghats of Kerala and is the highest peak of peninsular India. The question provides three mutually reinforcing clues—Mount Abu, Rajasthan, and the highest Aravalli summit—so the answer can be identified without relying on elevation comparisons alone. Therefore, option D is unambiguous.

Correct answer: A. Dhupgarh

The correct answer is A, Dhupgarh. It is a prominent peak of the Satpura Range and is associated with the Pachmarhi hill station in Madhya Pradesh. Pachmarhi lies in a forested highland setting, and Dhupgarh is commonly identified as the highest point of the Satpura system. The other options belong to different physical regions: Kanchenjunga is a major Himalayan peak in the Sikkim area, Mahendragiri is associated with the Eastern Ghats in Odisha, and Godwin Austen, or K2, is a great peak of the Karakoram. The clues are therefore a location-to-landform match rather than a calculation. Linking Pachmarhi with Satpura and Madhya Pradesh directly leads to Dhupgarh.

Correct answer: B. Kanchenjunga

The correct answer is B, Kanchenjunga. Kanchenjunga is a major peak of the Eastern Himalayas and is strongly associated with the Sikkim region on the India-Nepal mountain frontier. It is widely recognized as one of the world’s highest mountains and as an important Himalayan landmark. The location clue is decisive: Anamudi is in Kerala’s Western Ghats, Guru Shikhar is in the Aravalli Range near Mount Abu in Rajasthan, and Doddabetta belongs to the Nilgiri Hills of southern India. Thus, the question tests geographical association rather than merely the ability to identify a high elevation. Eastern Himalaya plus Sikkim points directly to Kanchenjunga, making option B the only suitable answer.

Correct answer: C. Anamudi

The correct answer is C, Anamudi. Anamudi is located in Kerala within the Western Ghats and is widely recognized as the highest peak of peninsular India and South India. Its name and location are commonly linked with the highland landscape of the Eravikulam area. The distractors belong to other mountain regions: Nanda Devi is a major Himalayan peak in Uttarakhand, Guru Shikhar is the highest point of the Aravalli Range in Rajasthan, and Dhupgarh is associated with the Satpura Range near Pachmarhi in Madhya Pradesh. The three clues in the question work together: Kerala identifies the state, Western Ghats identify the range, and the high southern peak identifies Anamudi. Therefore option C is the only geographically consistent answer.

Correct answer: A. Eastern Ghats

The correct answer is the Eastern Ghats because they extend discontinuously along much of India’s eastern coastal side and are repeatedly cut by major rivers flowing toward the Bay of Bengal. Rivers such as the Mahanadi, Godavari, Krishna, and Kaveri interrupt the range, so it does not form one continuous wall. The Western Ghats, in contrast, are generally more continuous and lie along the western coast. Karakoram and Himadri belong to the high Himalayan mountain system, not the eastern coastal hills. Thus both clues—eastern location and river-cut broken relief—support option A.

Correct answer: B. Hills of North-east India

Option B is correct because Barail, Mishmi, Abor, and Dafla are names associated with the complex hill ranges of northeastern India. They occur in or around the Purvanchal and Arunachal–Assam mountain region, where the Himalayan system bends southward and continues through several separate hill units. These names are therefore useful regional clues rather than names of one single continuous range. The Southern Western Ghats are far to the southwest, while the Aravalli and Vindhya ranges belong to western and central India respectively. The grouping of all four names strongly identifies the northeastern hills.

Correct answer: A. Arunachal Pradesh

Option A, Arunachal Pradesh, is correct. The Mishmi Hills occupy the eastern and northeastern part of the state, while the Abor and Dafla hills are traditional names for hill regions associated with the central and western parts of Arunachal Pradesh. Together they represent subdivisions of the northeastern mountain system near the eastern Himalaya. Tamil Nadu contains sections of the southern Western Ghats, Rajasthan is associated with the Aravalli Range and desert margins, and Maharashtra contains Deccan and Sahyadri landforms. Their locations do not fit the three named northeastern hill groups. The state-based clue therefore leads unambiguously to Arunachal Pradesh.

Correct answer: A. They are associated with plateau-mountain parts of Maharashtra

Option A is correct because the Harishchandra and Ajanta hill groups are associated with the relief of Maharashtra and the Deccan Plateau region. They are part of the rugged western peninsular landscape, shaped by elevated plateau surfaces, escarpments, and associated hill ranges. This location and landform relationship explains why they are studied with Deccan geography. Sikkim’s glaciers belong to the Himalayan cryospheric environment, Meghalaya is known for its northeastern hills and heavy rainfall, and Rajasthan’s dunes are desert landforms. None of those alternatives matches the Maharashtra plateau setting. The regional and physical-feature clues therefore support A.

Correct answer: A. Their formation by compression of the Indian and Eurasian plates

Option A is correct. The Himalayas formed when the northward-moving Indian Plate collided with the Eurasian Plate. Compression at this convergent boundary folded and uplifted layers of marine and continental sediments, producing a high mountain system that is still tectonically active. Ongoing uplift, earthquakes, steep slopes, and frequent landslides are consistent with the idea of a young fold mountain range. Deccan lava is related to ancient volcanism, not Himalayan folding; the Aravalli is an old eroded range, not coral; and Ganga alluvium is loose river sediment deposited in the plains. Therefore plate compression provides the strongest geological basis.

Correct answer: B. Due to repeated basaltic lava flows

Option B is correct because the Deccan Trap was built by numerous successive outpourings of fluid basaltic lava. Each flow cooled into a hard rock layer, and later weathering and erosion removed softer or more exposed material at different rates. This produced a series of benches and escarpments resembling steps; the word trap comes from a term associated with stairs. Coral deposits are marine sedimentary materials, glacial deposits are formed by moving ice, and Ganga alluvium is river-laid sediment of the northern plains. None explains the vast layered basaltic plateau. Repeated lava flows therefore provide the correct process.