Mountains and Plateaus of India

The correct answer is Sundarbans mangroves. The Ganga-Brahmaputra delta is a low-lying tidal region where freshwater from rivers mixes with saline water from the Bay of Bengal. Mangrove plants are specially adapted to this environment through salt tolerance, tangled supporting roots and, in many species, breathing roots that help them survive waterlogged mud. The Sundarbans is the best-known mangrove region of this delta. Alpine forests require high mountainous conditions, desert vegetation requires very dry conditions, and thorn scrub is associated with semi-arid areas. Thus the delta’s tidal, saline setting clearly points to option D.

The correct answer is east and south-east. The Deccan Plateau has a broad general gradient from the higher Western Ghats toward the lower eastern side of peninsular India. This slope helps explain why major rivers such as the Godavari, Krishna and Kaveri generally flow eastward and empty into the Bay of Bengal, although the Narmada and Tapi follow a different west-flowing pattern in rift valleys. The options saying only north, only southwest, or west and northwest do not describe the overall plateau gradient. Hence option A is correct for the general, not absolute, direction of slope.

The correct answer is B. The Deccan Trap was formed by extensive volcanic lava flows, and the weathering of its basaltic rocks contributed to the development of black, clay-rich regur soil across large parts of the Deccan region. This soil can retain moisture and is traditionally associated with cotton cultivation, although crops depend on several conditions. Option A is wrong because glacial ice does not form the Deccan Trap. Option C confuses volcanic basalt with marine coral, and option D is incorrect because the characteristic soil is not simply sandy. The relationship is therefore geological: basaltic lava rocks weathered over time and helped produce black soil.

The correct answer is C, the Narmada Valley. The Narmada flows westward through a structural rift valley situated between the Vindhya Range to the north and the Satpura Range to the south. This distinctive north–south relationship is a standard feature of the physical geography of peninsular India. The Ganga Valley is the broad alluvial plain of northern India, while the Brahmaputra Valley lies mainly in Assam and is associated with the eastern Himalayan region. The Cauvery Valley belongs to southern India and does not occupy the space between Vindhya and Satpura. Thus, both the location and the rift-valley character identify the Narmada Valley.

The correct answer is A. The Eastern Ghats are an irregular, discontinuous hill system because several major rivers flowing toward the Bay of Bengal have cut across and dissected them. Important examples include the Mahanadi, Godavari, Krishna, and Cauvery river systems. In contrast, the Western Ghats form a more continuous escarpment along the western edge of the Deccan Plateau, although they too contain passes and local breaks. The Eastern Ghats are not under the sea, fully glaciated, or desert-formed; those statements contradict their location and tropical peninsular setting. River erosion and the older, more irregular structure of the range explain the correct answer.

The correct answer is B. The Western Ghats stand close to the Arabian Sea and intercept moisture-laden south-west monsoon winds. As these winds are forced to rise along the mountain slopes, they cool, condense, and produce orographic or relief rainfall on the windward side. After crossing the crest, the air descends and becomes relatively drier, contributing to a rain-shadow effect in parts of the Deccan Plateau. Option A refers to the wrong wind system, while C and D do not explain the rainfall mechanism. The Ghats act as a barrier because of their height, orientation, and position across the path of moist monsoon winds.

The correct answer is B. Himadri, also called the Great or Inner Himalaya, is the northernmost and highest major Himalayan range. It contains many permanently snow-covered peaks and supports important glaciers, which feed several perennial rivers. Its great elevation and continuous mountain wall distinguish it from the Shiwalik range, the outermost and lowest Himalayan belt, and from the middle Himachal or Lesser Himalaya. Option C describes neither a mountain range nor its climate, and option D incorrectly connects it with the Aravalli system. Therefore, the defining feature of Himadri is its exceptional height and extensive snow cover.

The correct answer is A. The Shiwalik, or Outer Himalaya, is the southernmost and outermost belt of the Himalayan system. It lies south of the Lesser Himalaya and consists largely of comparatively low hills made from unconsolidated sediments brought down from higher mountains. This location and structure distinguish it from the Himadri, the highest inner range, and from the Himachal or Lesser Himalaya. The Deccan Plateau is a separate peninsular upland, the Western Ghats are a different southern mountain system, and the Aravalli is an ancient range in northwestern India. Hence only option A correctly describes the Shiwalik’s position.

The correct answer is A because the Chota Nagpur Plateau is one of India’s most important mineral-producing regions. It contains substantial deposits of coal, iron ore, mica, bauxite, and other minerals. These resources support iron and steel plants, power generation, engineering, cement, and several related industries. The plateau’s mineral wealth has encouraged the growth of major industrial centres in Jharkhand, Odisha, West Bengal, and nearby areas. Marine fishing is associated with coastal regions, rice deltas are low-lying alluvial areas rather than mineral plateaus, and glacial tourism belongs mainly to high Himalayan environments. Thus, mineral resources and industries best explain its economic importance.

Option A is correct. The Nilgiri Hills lie in southern India at the broad meeting zone of the Western Ghats and the Eastern Ghats, especially around the tri-junction of Tamil Nadu, Kerala, and Karnataka. Their elevated terrain includes important hill stations such as Ooty, and Doddabetta is a notable summit in the Nilgiri range. The other options describe unrelated landforms: the Aravalli is an ancient range of north-western India, the Ganga Plain is a broad lowland, and the Thar consists mainly of arid desert surfaces and dunes. Therefore, the geographical position of the Nilgiris is best identified by their association with both major southern ghat systems.

Option A is correct because the Deccan Plateau has a general slope toward the east and south-east. Under gravity, many major peninsular rivers consequently flow across the plateau toward the Bay of Bengal, where several form deltas. The Godavari, Krishna, and Cauvery are important examples of east-flowing rivers. The statement does not mean every river flows east: the Narmada and Tapi flow west through structural troughs and enter the Arabian Sea. Thus option B is too absolute. Options C and D are also wrong because the plateau has many rivers and most peninsular rivers do not originate in the Himalayas. The broad drainage pattern is therefore eastward.

Option A is correct because the Aravalli Range is regarded as one of India’s oldest fold mountain systems. It extends broadly from the Delhi region through Haryana and Rajasthan toward Gujarat, although erosion has greatly lowered and broken its original relief. Guru Shikhar at Mount Abu is its highest point. The range is geographically important because it influences local drainage, acts as a barrier in parts of the desert region, and records a very ancient geological history. A glacier is a mass of persistent ice, not a mountain range; a coastal lagoon is a water body, and the Brahmaputra Plain is an alluvial lowland. These definitions show why options B, C, and D cannot describe the Aravalli.

Option B is correct. The Karakoram and Ladakh ranges are major components of the Trans-Himalayan region, which lies north of the main Himalayan ranges and includes high, cold, and mostly arid mountain landscapes. Ladakh is known for sparse vegetation, high-altitude valleys, and dramatic relief, while the Karakoram contains some of the world’s highest peaks and extensive glaciers. The Eastern Ghats are older hills along parts of eastern peninsular India, the Aravalli is an ancient range in north-western India, and the Deccan Trap is a volcanic plateau formed by extensive basaltic lava flows. Since those alternatives belong to different physiographic settings, the Trans-Himalaya is the unambiguous answer.

Option A is correct. The Palghat, or Palakkad, Gap is a broad natural break in the Western Ghats between the Nilgiri Hills to the north and the Anaimalai Hills to the south. It provides an important low-level passage between Kerala and Tamil Nadu and has helped movement of people, transport, trade, air masses, and cultural influences across the mountain barrier. It is not a Himalayan peak, so option B confuses a pass with a summit. The Aravalli is a separate ancient mountain system and is not characterized here by a volcano. Meghalaya’s rainy areas belong to north-eastern India, not to the Palghat Gap. Its key importance is therefore connectivity through the Western Ghats.

Option A is correct. Anamudi, also written Anamudi, is a prominent peak in the Western Ghats of Kerala and is generally recognized as the highest peak in South India, rising to about 2,695 metres. It lies in the Anaimalai Hills within the broader Western Ghats system and is associated with the highland landscape of Kerala. Option B is incorrect because the outermost Himalayan range is the Shiwalik range, not a single peak. Option C confuses a mountain with black soil, which is a soil type linked largely with basaltic Deccan Trap areas. Option D describes neither a peak nor Anamudi’s location. The correct association is therefore Anamudi with the high Western Ghats of southern India.

Option B is correct. Kangchenjunga, also spelled Kanchenjunga, is a celebrated high peak of the Eastern Himalayas and is closely associated with Sikkim on India’s north-eastern frontier. It rises in the Himalayan region near the Sikkim–Nepal boundary and is one of the world’s highest mountains. The question asks for the Indian regional association, so “Eastern Himalaya and Sikkim” is the most precise choice. The Western Himalaya and Punjab belong much farther west, while the Deccan Plateau and Karnataka are peninsular regions unrelated to this peak. The Aravalli range lies in north-western India and is much older and lower in character. These geographical contrasts make option B unambiguous.

Option A is correct. Nanda Devi is a major Himalayan peak in Uttarakhand, located in the Garhwal Himalaya. It is one of the most prominent mountains wholly within India and has great geographical, cultural, and ecological importance. The surrounding landscape includes high valleys, glaciers, and protected mountain environments. Rajasthan is associated with the Aravalli Range, not the Himalayas; Karnataka is mainly associated with the Western Ghats; and Meghalaya contains the Khasi Hills in north-eastern India. These alternatives pair different states with different physical divisions. Therefore, the correct state–region combination is Uttarakhand and the Himalayas. Remembering Nanda Devi with Uttarakhand helps distinguish it from other famous Indian peaks such as Anamudi and Kangchenjunga.

Option A is correct because the Malwa Plateau is chiefly associated with western and central Madhya Pradesh, although its geographical influence extends into adjoining Rajasthan and other nearby areas. It is a part of the peninsular plateau and is largely formed over basaltic lava surfaces connected with the Deccan volcanic province. The plateau is drained by rivers such as the Chambal and its tributaries and has historically supported agriculture and settlement. Andaman is an island group, not the location of the Malwa Plateau. The outer Himalayan range is the Shiwalik, a completely different mountain belt, while Kachchh’s coastal lakes and wetlands are unrelated landforms. Thus the state association in option A is the accurate one.

The correct answer is Uttar Pradesh and Madhya Pradesh because the Bundelkhand Plateau occupies parts of both states in central India. It is an ancient, uneven, rocky upland associated with hard crystalline rocks, shallow soils, and irregular relief. The plateau is bordered by the Yamuna plain toward the north and forms part of the wider peninsular plateau system. Kerala and Tamil Nadu are associated mainly with the southern Western Ghats and coastal or upland regions, not Bundelkhand. Assam and Sikkim belong to the north-eastern Himalayan region, while Punjab and Haryana are largely connected with the fertile alluvial plains. Therefore, option A gives the only geographically accurate regional association.

Option A is correct because the Amarkantak Plateau is an important watershed and source region in central India. The Narmada rises near Amarkantak and flows westward, while the Son, a major tributary of the Ganga, begins in the same broader highland area and flows generally eastward. A watershed or water divide separates drainage systems, so rivers from opposite sides of a highland may move toward different basins. The plateau is not merely a coastal landform, a coral island, or sandy Thar terrain. Those descriptions belong to entirely different physical environments. Thus, the river origins and the divide between drainage directions explain why option A is correct.

The correct answer is the Satpura mountain system. The Maikal Hills form the eastern part or extension of the Satpura ranges, while the Mahadeo Hills are an important group in the central Satpura highlands. Together they represent the rugged uplands of central India and are associated with forests, plateaus, and important drainage divides. The Eastern Ghats lie mainly along the eastern side of peninsular India; the Aravallis extend through Rajasthan and nearby areas; and the Karakoram belongs to the high Trans-Himalayan region. Their locations and geological settings are different. Therefore, option A correctly identifies the mountain system containing both Maikal and Mahadeo Hills.

Option A is correct because the Khasi Hills are famous for exceptionally heavy monsoon rainfall, especially around Mawsynram and Cherrapunji in Meghalaya. Moisture-laden winds from the Bay of Bengal are forced to rise when they meet the hills. As the air rises, it cools, condensation occurs, and very heavy orographic rain falls on the windward slopes. This relief-related rainfall gives the Khasi Hills special climatic importance. The region is not a completely dry desert, a glacial plain, or a black-soil cotton belt. Those alternatives describe other environments and do not explain Meghalaya's well-known rainfall pattern. Hence, the presence of very high-rainfall locations makes A the only suitable answer.

The correct answer is option A. The Purvanchal Hills are the eastern and north-eastern continuation of the Himalayan mountain system beyond the bend of the Himalaya. They include important hill groups such as the Patkai, Naga, Manipur, Mizo and related ranges. These hills form a complex, forested and folded highland region along the eastern margin of India and help shape drainage and climate in the North-East. The Deccan Trap is a volcanic plateau of peninsular India, the Aravalli is an ancient range mainly associated with western India, and the Ganga Plain is an alluvial lowland rather than a hill system. Therefore, only A gives the correct geomorphological relationship.

Option A is correct because Ladakh is a high-altitude, cold desert region of the Trans-Himalaya. Its great elevation, mountain barriers and location in the rain-shadow zone reduce moisture, so precipitation is very limited and the landscape is dry despite the presence of snow and glaciers at higher elevations. Temperatures are low, vegetation is sparse, and settlements are concentrated near rivers and irrigated valleys. Ladakh is therefore very different from a tropical marsh, a humid coconut-growing coast, or a dense evergreen plain. Those alternatives require warm, wet and generally lowland conditions that do not fit its physical geography. The combination of high elevation, aridity and cold makes the cold-desert highland description the most accurate.

The correct answer is the Aravalli Range. Mount Abu is a well-known hill station situated in the Aravalli region of Rajasthan, and Guru Shikhar, located near Mount Abu, is traditionally identified as the highest peak of the Aravalli Range, rising to about 1,722 metres. This association is useful for distinguishing the old, much-eroded Aravalli system from India's younger and higher Himalayas. The Western Ghats run along the western edge of the Deccan Peninsula, while the Eastern Ghats are discontinuous hills along the eastern side of peninsular India. Since both named places belong to the Mount Abu upland in Rajasthan, option A is the only correct answer.