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Indian and World Geography

296 questions

All types296Multiple choice151Multiple select37Matching54Ordering54
Question 241Question →

Which of the following represents the correct matching of the major industrial centers of India in List I with their primary industrial sector in List II?

Click a left item, then click its matching right item

Items

Ankleshwar
Damanjodi
Ludhiana
Bhadravati

Matches

Show answer & explanation

Answer

Ankleshwar matches with Petrochemicals and crude oil extraction; Damanjodi matches with Bauxite mining and alumina refining; Ludhiana matches with Woollen textiles and knitwear products; and Bhadravati matches with Specialized alloy and steel production.
Ankleshwar is an established center for oilfields and petrochemicals; Damanjodi is renowned for NALCO's bauxite-based alumina refinery; Ludhiana is the country's main hub for woollen hosiery; and Bhadravati is an integrated iron and steel industrial plant in Karnataka.

Step-by-Step Solution

1
Analyze the primary industry associated with Ankleshwar
Ankleshwar is situated in Gujarat's hydrocarbon belt, making it a prominent center for petroleum production and downstream petrochemical industries.
Locational proximity to oilfields in the Cambay region dictates its industrial profile.
2
Analyze the primary industry associated with Damanjodi
Damanjodi is the site of National Aluminium Company Limited's (NALCO) alumina refinery plant near high-grade bauxite deposits in Odisha.
Because raw bauxite loses significant weight during alumina refining, processing units are established near mineral mines.
3
Analyze the primary industry associated with Ludhiana
Ludhiana is a major non-mineral manufacturing cluster famous across India for woollen garment manufacturing and knitwear.
Market-linked footloose industries flourished here due to skilled labor and commercial networks in Punjab.
4
Analyze the primary industry associated with Bhadravati
Bhadravati hosts the Visvesvaraya Iron and Steel Plant along the Bhadra River in Karnataka.
Established initially utilizing charcoal from local forests and hydroelectricity from Mahatma Gandhi Hydroelectric Project, it specializes in alloy steels.

Key Concept

Industrial localization factors and resource-based spatial distribution of manufacturing hubs in India
Question 242Question →

With reference to the locational dynamics and regional concentration of the silk textile industry in India, consider the following statements:

1. Mulberry silk production in India is heavily concentrated in the Peninsular region, with Karnataka being the leading producing state.
2. Muga silk is a wild silk variety that is geographically exclusive to Assam and holds a Geographical Indication (GI) tag.

Which of the statements given above is/are correct?

Show answer & explanation

Answer: Both 1 and 2

Answer

Both statement 1 and statement 2 are correct.
Both statements are correct. India produces five commercial types of silk: Mulberry, Tropical Tasar, Temperate Tasar, Eri, and Muga. Mulberry silk is primarily concentrated in South India (Karnataka, Andhra Pradesh, Tamil Nadu), with Karnataka producing the largest share. Muga silk is unique to Assam and holds the GI tag due to its exclusive geographical production zone in the Brahmaputra valley.

Step-by-Step Solution

1
Evaluate Statement 1 regarding mulberry silk distribution.
Mulberry silk accounts for the majority of silk produced in India, and its cultivation is concentrated in southern Peninsular states, with Karnataka leading production followed by Andhra Pradesh and Tamil Nadu.
Topographical and climatic conditions in Southern India favor year-round sericulture and mulberry plant cultivation.
2
Evaluate Statement 2 regarding Muga silk distribution.
Muga silk, derived from Antheraea assamensis, is golden-yellow silk produced almost exclusively in the Brahmaputra valley of Assam.
The specific ecological host plant requirements (Som and Soalu trees) restrict wild Muga silk production endemic to Assam, earning it a GI tag.
3
Synthesize the statement evaluations to select the correct choice.
Since both statement 1 and statement 2 are accurate, the option stating 'Both 1 and 2' is correct.
Conjoins the valid spatial distribution facts of both Mulberry and Vanya (wild) silks.

Key Concept

Spatial distribution of sericulture and textile industrial hubs in India
Question 243Question →

The seasonal withdrawal of the South-West monsoon from North-Western India, which typically begins in early September, is primarily driven by which of the following atmospheric changes?

Show answer & explanation

Answer: The southward retreat of the Inter-Tropical Convergence Zone (ITCZ) accompanied by the weakening of the intense heat low over North-West India

Answer

The southward retreat of the Inter-Tropical Convergence Zone (ITCZ) accompanied by the weakening of the intense heat low over North-West India.
Monsoon withdrawal begins when solar insolation over the northern sub-continent decreases in late autumn. This causes the Inter-Tropical Convergence Zone (ITCZ) to migrate southwards. As a result, the intense thermal low over North-West India breaks down, allowing land-to-sea pressure gradients to form and triggering clear skies and retreating wind patterns.

Step-by-Step Solution

1
Analyze the solar movement and surface pressure conditions in late summer
By September, the Sun's apparent movement shifts southward toward the equator, reducing solar insolation over the Northern Hemisphere.
Solar declination change alters thermal contrast between the Indian landmass and the ocean.
2
Trace the movement of the low-pressure system (ITCZ)
The trough of low pressure (Monsoon Trough/ITCZ) over North-West India weakens and shifts southward.
Without the thermal low driving the pressure gradient, moisture-bearing south-westerly winds lose momentum.
3
Evaluate the wind pattern reversal leading to withdrawal
Clear skies and rising pressure establish north-easterly flow, marking the systematic retreat of the monsoon from Punjab and Rajasthan.
The change in atmospheric driving forces leads to the onset of the retreat phase.

Key Concept

Mechanisms of South-West Monsoon Withdrawal and ITCZ Migration
Question 244Question →

Consider the following statements regarding the physical geography and relief characteristics of the Indian Island groups:

1. The Ten Degree Channel forms the maritime boundary separating the Andaman Island group from the Nicobar Island group.
2. The Lakshadweep group of islands is primarily of coral origin and is situated off the Malabar Coast in the Arabian Sea.
3. Barren Island, which hosts the only confirmed active volcano in South Asia, is located within the Nicobar group of islands.

Which of the statements given above is/are correct?

Show answer & explanation

Answer: 1 and 2 only

Answer

The correct combination is 1 and 2 only.
Statements 1 and 2 are accurate. The Ten Degree Channel serves as the physical divide separating the Andaman and Nicobar groups. Lakshadweep consists of coral reef islands situated off the Malabar coast in the Arabian Sea. Statement 3 is false because Barren Island belongs to the Andaman island cluster in the Andaman Sea, not the Nicobar group.

Step-by-Step Solution

1
Evaluate Statement 1 regarding the channel dividing the island archipelagos.
Statement 1 is correct. The Ten Degree Channel separates the Andaman Islands (specifically Little Andaman) from the Nicobar Islands (specifically Car Nicobar).
Verify latitudinal water channels in the Bay of Bengal.
2
Evaluate Statement 2 regarding the origin and location of Lakshadweep.
Statement 2 is correct. Lakshadweep consists of coral islands (atolls) located in the Arabian Sea off the Malabar Coast of India.
Verify physical origin and sea basin location.
3
Evaluate Statement 3 regarding the location of India's active volcano.
Statement 3 is incorrect. Barren Island is located in the Andaman Sea approximately 138 km east of Port Blair, placing it in the Andaman group, not the Nicobar group.
Differentiate between the Andaman and Nicobar island subgroup features.

Key Concept

Physiography of Indian Islands (Andaman & Nicobar and Lakshadweep)
Question 245Question →

Arrange the following major industrial centers of India in geographical sequence from West to East:

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Answer

The correct geographical order from West to East is Jamnagar, followed by Pithampur, Korba, and finally Haldia.
Jamnagar is situated in westernmost Gujarat on the Kathiawar peninsula (~70.06° E). Moving east, Pithampur is located near Indore in western Madhya Pradesh (~75.68° E). Further east, Korba lies in central Chhattisgarh (~82.68° E), known for its aluminium smelting and power plants. Finally, Haldia is an eastern port and petrochemical hub in West Bengal (~88.06° E).

Step-by-Step Solution

1
Identify the geographical coordinates (longitudes) and state locations of each industrial center
Jamnagar is in western Gujarat (~70° E), Pithampur is in western Madhya Pradesh (~75.7° E), Korba is in central Chhattisgarh (~82.7° E), and Haldia is in coastal West Bengal (~88.1° E).
Arranging locations spatially from West to East requires comparing their longitudinal values across India's administrative geography.
2
Sort the industrial hubs progressively from lowest longitude (westernmost) to highest longitude (easternmost)
Jamnagar (~70.06° E) -> Pithampur (~75.68° E) -> Korba (~82.68° E) -> Haldia (~88.06° E).
This establishes the exact sequential order from West to East.

Key Concept

Spatial arrangement and longitudinal distribution of major industrial centers across India.
Question 246Question →

Arrange the following mountain ranges of northern India in the correct sequence from North to South:

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Answer

The correct order from North to South is Karakoram Range, Ladakh Range, Zaskar Range, and Shiwalik Range.
The correct arrangement from North to South begins with the Karakoram Range (northernmost Trans-Himalayan zone), followed by the Ladakh Range (between Shyok and Indus rivers), the Zaskar Range (south of the Indus River), and finishes with the Shiwalik Range (southernmost outer Himalayan foothills).

Step-by-Step Solution

1
Identify the northernmost mountain range in the northern arc of India.
The Karakoram Range occupies the extreme northern section in the Trans-Himalayas.
Geographically, Karakoram lies at the highest latitude above the Shyok River.
2
Sequence the intermediate Trans-Himalayan ranges between the Shyok and Indus Rivers.
The Ladakh Range lies immediately south of Karakoram, followed by the Zaskar Range south of the Indus River.
The Indus River flows between the parallel Ladakh Range to its north and the Zaskar Range to its south.
3
Locate the southernmost Himalayan range adjoining the Northern Plains.
The Shiwalik Range forms the outer, southernmost foothills of the Himalayan system.
Shiwaliks mark the southern geographical boundary of the Himalayas facing the Indo-Gangetic Plains.

Key Concept

Latitudinal (North-to-South) spatial arrangement of Trans-Himalayan and Himalayan relief features in India.
Question 247Question →

Match List-I (Soil Types and Natural Vegetation in India) with List-II (Key Pedological and Ecological Characteristics) to establish the correct relationships.

Click a left item, then click its matching right item

Items

Tropical Dry Deciduous Forest
Saline Soil (Usar Soil)
Black Soil (Regur Soil)
Littoral and Swamp Forest

Matches

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Answer

Tropical Dry Deciduous Forest matches with the transitional leaf-shedding forest zone; Saline Soil matches with salt accumulation via capillary action; Black Soil matches with basaltic origin, moisture retention, and self-ploughing; Littoral and Swamp Forest matches with estuarine habitats, pneumatophores, and viviparous germination.
Each item is matched to its authoritative geographic classification in India. Tropical Dry Deciduous forests drop leaves during dry seasons to conserve water; Saline soils form when capillary action brings sodium and magnesium salts to the surface in poorly drained dry areas; Black soils arise from Deccan basalt weathering and display self-ploughing clay characteristics; and Littoral/Swamp forests utilize pneumatophores to survive in submerged coastal marshlands.

Step-by-Step Solution

1
Analyze the defining physical and biological properties of each entity listed in List-I.
Tropical Dry Deciduous forest is characterized by seasonal leaf shedding; Saline soil features surface salt crusts via capillary action; Black soil exhibits high clay content and basaltic origin; Swamp forest features respiratory roots.
Establishing the core ecological or pedological signature of each term enables accurate matching.
2
Pair each entity from List-I with its matching description in List-II.
Tropical Dry Deciduous Forest corresponds to the description mentioning Teak and summer leaf drop; Saline Soil corresponds to salt accumulation via capillary forces; Black Soil corresponds to basaltic origin and self-ploughing; Littoral/Swamp Forest corresponds to tidal breathing roots.
Verifying all pairs ensures full alignment across the soil and vegetation classifications.

Key Concept

Soil formation mechanisms and natural vegetation adaptations in India
Question 248Question →

Which of the following major ports in India is a natural land-locked harbor protected from sea storms by a prominent hill feature known as 'Dolphin's Nose'?

Show answer & explanation

Answer: Visakhapatnam Port

Answer

Visakhapatnam Port
Visakhapatnam Port, situated in Andhra Pradesh along the Bay of Bengal, is a premier major port on the east coast of India. It is a natural land-locked harbor where an inlet of the sea is sheltered by a high rocky projection into the ocean known as 'Dolphin's Nose'. This promontory shields ships within the harbor from ocean currents and storms.

Step-by-Step Solution

1
Identify the geographical feature 'Dolphin's Nose' and its relation to Indian maritime transport infrastructure.
Dolphin's Nose is a rocky promontory jutting into the sea on the southern side of Visakhapatnam harbor in Andhra Pradesh.
This geographical feature acts as a natural breakwater, protecting the harbor from heavy cyclonic winds and waves.
2
Match this natural feature to the specific major port characteristic.
Visakhapatnam is recognized as India's deepest land-locked natural harbor on the eastern coast.
The natural inlet and sheltering hills distinguish it from artificial deep-water ports like Paradip or estuarine ports like Marmagao.

Key Concept

Geographical Characteristics of Major Ports in India
Estimated Time:1m 0s
Question 249Question →

Arrange the following prominent mountain passes of the Western Ghats (Sahyadri) in sequential order from North to South:

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Answer

The correct North-to-South order of the mountain passes of the Western Ghats is Thal Ghat, followed by Bhor Ghat, Pal Ghat, and Shencottah Gap.
The sequence is established by tracing the Western Ghats from north to south by latitude: Thal Ghat (19.7∘ N19.7^\circ\text{ N}) is the northernmost pass near Igatpuri; Bhor Ghat (18.7∘ N18.7^\circ\text{ N}) lies south of Thal Ghat near Khandala; Pal Ghat (10.8∘ N10.8^\circ\text{ N}) is a major discontinuity between the Nilgiri and Anaimalai Hills; and Shencottah Gap (9.0∘ N9.0^\circ\text{ N}) is the southernmost pass traversing the Cardamom Hills region.

Step-by-Step Solution

1
Determine the latitudinal position of the northern passes located in Maharashtra.
Thal Ghat lies at approximately 19.7∘ N19.7^\circ\text{ N} (connecting Mumbai and Nashik), while Bhor Ghat lies further south at approximately 18.7∘ N18.7^\circ\text{ N} (connecting Mumbai and Pune).
Thal Ghat is situated north of Bhor Ghat within the Maharashtra segment of the Western Ghats.
2
Determine the position of the major pass in the central-southern Western Ghats.
Pal Ghat (Palakkad Gap) is located at approximately 10.8∘ N10.8^\circ\text{ N}, bridging the gap between the Nilgiri Hills to the north and the Anaimalai Hills to the south.
Pal Ghat is located well south of Maharashtra but north of the extreme southern hill ranges.
3
Determine the position of the southernmost gap.
Shencottah Gap is located at approximately 9.0∘ N9.0^\circ\text{ N} near the Cardamom and Agasthyamalai Hills.
Shencottah Gap is the southernmost prominent pass linking Kerala and Tamil Nadu across the Western Ghats.
4
Assemble the complete sequence from North to South.
Thal Ghat (19.7∘ N19.7^\circ\text{ N}) →\rightarrow Bhor Ghat (18.7∘ N18.7^\circ\text{ N}) →\rightarrow Pal Ghat (10.8∘ N10.8^\circ\text{ N}) →\rightarrow Shencottah Gap (9.0∘ N9.0^\circ\text{ N}).
This sequence accurately reflects the decreasing latitude from north to south along the Peninsular shield.

Key Concept

Spatial latitudinal ordering of Western Ghats passes
Estimated Time:1m 0s
Question 250Question →

Which of the following types of natural vegetation in India develops in regions receiving annual rainfall exceeding 200 cm200\text{ cm} with a short dry season, and is predominantly characterized by tree species such as Rosewood, Ebony, and Mahogany?

Show answer & explanation

Answer: Tropical Evergreen Forest

Answer

Tropical Evergreen Forest is the correct answer.
Tropical Evergreen forests are found on the western slopes of the Western Ghats, hills of the Northeastern region, and the Andaman and Nicobar Islands. They flourish in areas with over 200 cm200\text{ cm} annual rainfall and high ambient temperatures. Characteristic species include Rosewood, Mahogany, Ebony, and Aini.

Step-by-Step Solution

1
Analyze the climatic parameters in the stem
Identified high rainfall threshold exceeding 200 cm200\text{ cm} accompanied by a short dry season and warm temperatures.
Vegetation distribution in India is primarily driven by annual precipitation and seasonal dry spells.
2
Match the indicator flora to ecological types
Rosewood, Ebony, and Mahogany are classic timber species of dense tropical evergreen rainforests.
These species require high moisture throughout the year and do not have a synchronised leaf-shedding season.

Key Concept

Climatic thresholds and indicator tree species of Indian Natural Vegetation belts
Question 251Question →

Which of the following relief characteristics distinguishes the Western Coastal Plain from the Eastern Coastal Plain of India?

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Answer: The Western Coastal Plain is a narrow submerged coast providing favorable natural conditions for port development.

Answer

The Western Coastal Plain is a narrow submerged coast providing favorable natural conditions for port development.
The Western Coastal Plain is a submerged coastline. Because of this submergence, it is narrow in width and provides deep natural indentations ideal for natural harbors and port development. In contrast, the Eastern Coastal Plain is an emergent coast, broader, and dominated by deltaic formations.

Step-by-Step Solution

1
Analyze the geological origin and coast type of the Western Coastal Plain.
The Western Coastal Plain of India is an example of a submerged coastal plain, which makes it narrow and indented.
Submergence provides deep water along the coastline suitable for natural ports and harbors.
2
Compare the feature with the Eastern Coastal Plain.
The Eastern Coastal Plain is an emergent coast, much broader, and characterized by large river deltas (Mahanadi, Godavari, Krishna, Kaveri).
Emergent coasts tend to develop broad alluvial plains rather than narrow submerged inlets.

Key Concept

Physiographic differences between Western and Eastern Coastal Plains of India
Estimated Time:1m 0s
Question 252Question →

Inland water transport is a vital component of India's multimodal transportation architecture. Which of the following statements regarding Inland Waterways and river transport infrastructure in India are correct?

Select all that apply

Show answer & explanation

Answer: National Waterway-2 (NW-2) stretches along the Brahmaputra River between Sadiya and Dhubri in Assam.; National Waterway-3 (NW-3) incorporates the West Coast Canal along with the Champakara and Udyogmandal canals in Kerala.

Answer

The correct statements are that National Waterway-2 stretches along the Brahmaputra River between Sadiya and Dhubri in Assam, and National Waterway-3 incorporates the West Coast Canal along with the Champakara and Udyogmandal canals in Kerala.
National Waterway-2 (Sadiya to Dhubri on the Brahmaputra River) and National Waterway-3 (Kottapuram to Kollam including Champakara and Udyogmandal canals in Kerala) are correctly described in terms of their geographical extent and connected canal networks.

Step-by-Step Solution

1
Evaluate the statement concerning National Waterway-2 (NW-2)
NW-2 spans 891 km on the Brahmaputra River from Sadiya to Dhubri in Assam. The statement is correct.
It correctly identifies the river system, state, and terminal locations for NW-2.
2
Evaluate the statement concerning National Waterway-3 (NW-3)
NW-3 spans 205 km along Kerala's West Coast Canal (Kottapuram to Kollam) plus the Champakara and Udyogmandal canals. The statement is correct.
It accurately states the navigational canal network constituting NW-3.
3
Evaluate the administration and headquarters location of IWAI
IWAI was set up under the IWAI Act, 1985, and functions under the Ministry of Ports, Shipping and Waterways with headquarters in Noida, UP. The statement mentioning Mumbai is incorrect.
IWAI headquarters is located in Noida, Uttar Pradesh, not Mumbai.
4
Evaluate the governance mechanism for National Waterways
The National Waterways Act, 2016 empowers the Union Government through IWAI to develop, regulate, and maintain declared National Waterways. The statement claiming exclusive state board control is incorrect.
Central authority and funding drive National Waterways development.

Key Concept

Inland Waterways Network and Administrative Structure in India
Question 253Question →

Arrange the following National Waterways (NW) of India in the correct geographical sequence from North to South based on the location of their northernmost terminals.

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Answer

The correct North to South sequence is National Waterway 2, followed by National Waterway 1, National Waterway 4, and finally National Waterway 3.
The correct geographical sequence from North to South is determined by comparing the northern latitudes of each waterway's terminals: National Waterway 2 in Assam (~27.8° N) is northernmost, followed by National Waterway 1 along the Ganga system (~25.4° N), National Waterway 4 along the East Coast/Godavari-Krishna (~16.9° N), and National Waterway 3 along Kerala's West Coast (~10.2° N).

Step-by-Step Solution

1
Identify the latitude of the northernmost terminal of National Waterway 2.
NW-2 covers the Brahmaputra River between Sadiya and Dhubri in Assam. Sadiya is located at ~27.8° N latitude.
This establishes the starting point for the northernmost waterway in the list.
2
Identify the latitude of the northernmost terminal of National Waterway 1.
NW-1 covers the Ganga-Bhagirathi-Hooghly river system from Prayagraj to Haldia. Prayagraj is located at ~25.4° N latitude.
NW-1 lies immediately south of NW-2.
3
Identify the latitude of the northernmost terminal of National Waterway 4.
NW-4 stretches along canals and the Godavari-Krishna rivers between Kakinada and Puducherry. Kakinada is located at ~16.9° N latitude.
NW-4 is positioned south of NW-1 in peninsular India.
4
Identify the latitude of the northernmost terminal of National Waterway 3.
NW-3 consists of the West Coast Canal from Kottapuram to Kollam in Kerala. Kottapuram is located at ~10.2° N latitude.
NW-3 is the southernmost waterway listed.

Key Concept

Geographical distribution and spatial orientation of National Waterways in India
Estimated Time:1m 15s
Question 254Question →

Arrange the following major soil groups of India in decreasing order of their percentage contribution to the total geographical area of the country:

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Answer

The correct decreasing order of major soil groups by geographical area coverage in India is: Alluvial Soil, followed by Red Soil, Black Soil, and Laterite Soil.
According to the Indian Council of Agricultural Research (ICAR), the correct decreasing order of major soils by share of total geographical area is Alluvial Soil (~43%43\%), Red Soil (~18.5%18.5\%), Black Soil (~15%15\%), and Laterite Soil (~4.3%4.3\%).

Step-by-Step Solution

1
Assess the coverage of Alluvial Soil in India.
Alluvial soil covers approximately 43%43\% of India's land surface.
Deposition by major river networks (Indo-Gangetic-Brahmaputra system and eastern coastal rivers) makes it the most widespread soil.
2
Compare the spatial coverage of Red Soil and Black Soil.
Red soil covers about 18.5%18.5\% of the geographical area, while Black soil (Regur) covers about 15%15\%.
Weathering of crystalline metamorphic rocks creates extensive red soil tracts across Tamil Nadu, Karnataka, Andhra Pradesh, and Odisha, surpassing the extent of black volcanic soils.
3
Identify the geographical extent of Laterite Soil.
Laterite soil accounts for approximately 4.3%4.3\% of the total area.
Intense leaching under high rainfall conditions restricts laterite soils to specific highland regions.
4
Arrange the soils in decreasing order of area.
Alluvial Soil (43%43\%) > Red Soil (18.5%18.5\%) > Black Soil (15%15\%) > Laterite Soil (4.3%4.3\%).
This matches the official Indian Council of Agricultural Research (ICAR) land area classification.

Key Concept

Geographical Distribution and Area Share of Indian Soil Types
Question 255Question →

Regarding the physiographic sub-divisions and alluvial relief characteristics of the Northern Plains of India, which of the following statements are correct?

Select all that apply

Show answer & explanation

Answer: The Bhabar tract is a narrow belt of pebble deposits running parallel to the Shiwalik foothills where river streams disappear due to high porosity.; The Terai zone lies south of the Bhabar belt, where underground streams re-emerge to create a marshy and ill-drained forested tract.

Answer

The correct statements are that the Bhabar tract is a narrow belt of pebble deposits along the Shiwalik foothills where streams disappear, and the Terai zone lies south of the Bhabar belt where re-emerging streams form a marshy, ill-drained tract.
The Bhabar and Terai descriptions accurately reflect the North-to-South physiographic zonation at the base of the Shiwalik range. Streams lose surface expression in the pebble-rich Bhabar and re-emerge to create the marshy Terai tract.

Step-by-Step Solution

1
Analyze the Bhabar belt characteristics
Confirm that the Bhabar belt lies along the Shiwalik foothills, composed of unassorted boulders and pebbles causing stream sinking.
Verify structural sequence from North to South in the Northern Plains.
2
Evaluate the Terai zone features
Confirm that re-emergence of streams south of Bhabar creates the damp, swampy Terai region.
Ensure correct physical transition between relief zones.
3
Differentiate between Bhangar and Khadar alluvial deposits
Recognize that Bhangar is the older higher-terraced alluvium (often with Kankar nodules), whereas Khadar is the newer, fertile floodplain alluvium.
Identify inversions in soil age and flood deposition definitions.

Key Concept

Physiographic Zoning of the Northern Plains of India (Bhabar, Terai, Bhangar, Khadar)
Question 256Question →

Which of the following major ports of India was developed as the country's first corporatised major port operating as a public company under the Companies Act, primarily designed to handle thermal coal imports for electricity generation?

Show answer & explanation

Answer: Kamarajar Port (Ennore)

Answer

Kamarajar Port (Ennore)
Kamarajar Port, located on the Coromandel Coast in Tamil Nadu, was officially incorporated as Ennore Port Limited under the Companies Act, 1956. It holds the distinction of being India's first major port operating as a corporatised enterprise, constructed primarily to decongest Chennai Port and cater to the coal requirements of thermal power generation facilities.

Step-by-Step Solution

1
Identify the administrative structure of major ports in India.
Most major ports in India are governed as autonomous trusts under the Major Port Authorities Act, except Kamarajar Port.
Administrative differentiation is a key feature in Indian maritime infrastructure questions.
2
Examine the specific history of Ennore/Kamarajar Port.
Ennore Port Limited was registered as a public company under the Companies Act, 1956, to attract commercial flexibility and private investment.
It was designed specifically to unload coal for thermal power stations owned by Tamil Nadu Generation and Distribution Corporation (TANGEDCO).

Key Concept

Corporatised Major Ports and Cargo Handling Infrastructure in India
Estimated Time:1m 0s
Question 257Question →

Consider the following statements regarding the structural and relief features of the Peninsular Plateau of India:

1. The Central Highlands lie to the north of the Narmada River and are bounded by the Aravalli range on the northwest.
2. The Deccan Plateau is higher in the east and slopes gently towards the west.
3. The Western Ghats form a continuous relief wall that can be traversed only through passes, whereas the Eastern Ghats are discontinuous and dissected by major east-flowing rivers.

Which of the statements given above is/are correct?

Show answer & explanation

Answer: 1 and 3 only

Answer

1 and 3 only
The correct response identifies statements 1 and 3 as true statements. The Central Highlands lie north of the Narmada River, and the Western Ghats are structurally continuous compared to the breached Eastern Ghats. The second statement is incorrect because the Deccan Plateau is higher on the western side and slopes towards the east, as evidenced by the drainage pattern of most major peninsular rivers.

Step-by-Step Solution

1
Analyze Statement 1 regarding the position of the Central Highlands.
Statement 1 is correct. The portion of the Peninsular plateau lying north of the Narmada River is broad and classified as the Central Highlands, demarcated by the Aravallis on the northwest and Vindhyas on the south.
Topographical boundaries confirm the northern extent of the Peninsular block.
2
Analyze Statement 2 regarding the regional slope of the Deccan Plateau.
Statement 2 is incorrect. The Deccan Plateau has a higher elevation in the west (Western Ghats region) and slopes gently towards the east, as demonstrated by the eastward flow of rivers like the Godavari, Krishna, and Cauvery.
River drainage direction highlights the west-to-east tilt of the Peninsular shield.
3
Analyze Statement 3 regarding the comparative relief continuity of the Western and Eastern Ghats.
Statement 3 is correct. The Western Ghats form a continuous escarpment (navigable via passes like Thal Ghat, Bhor Ghat, and Palghat), whereas the Eastern Ghats are fragmented and eroded by major east-flowing peninsular rivers.
Geological erosion patterns differ between the elevated Western margin and dissected Eastern margin.

Key Concept

Peninsular Plateau Physiography and Relief Slope
Estimated Time:1m 15s
Question 258Question →

Match the prominent relief and landform features of India listed in List I with their corresponding mountain ranges or geographical regions in List II:

Click a left item, then click its matching right item

Items

Karewa Formations
Longitudinal Duns
Dodabetta Peak
Dhupgarh Peak

Matches

Show answer & explanation

Answer

Karewa Formations pair with Kashmir Himalayas, Longitudinal Duns pair with Shiwalik Range, Dodabetta Peak pairs with Nilgiri Hills, and Dhupgarh Peak pairs with Satpura Range.
Karewas are glacial-lacustrine deposits characteristic of the Kashmir Himalayas. Longitudinal Duns are structural valleys created between the Shiwalik Range and the Lesser Himalayas. Dodabetta Peak is the highest point of the Nilgiri Hills, while Dhupgarh Peak is the elevation maximum of the Satpura Range.

Step-by-Step Solution

1
Identify the geographical region associated with Karewa formations.
Karewas are lacustrine deposits located specifically in the valley region of the Kashmir Himalayas.
This establishes the pair between Karewa Formations and the Kashmir Himalayas.
2
Identify the structural relief zone containing longitudinal Duns.
Duns are longitudinal valley structures formed between the Himachal (Lesser Himalayas) and the Shiwalik Range.
This establishes the pair between Longitudinal Duns and the Shiwalik Range.
3
Locate Dodabetta Peak within its relief unit.
Dodabetta (2,637 m) is the prominent highest peak of the Nilgiri Hills.
This establishes the pair between Dodabetta Peak and the Nilgiri Hills.
4
Locate Dhupgarh Peak within its relief unit.
Dhupgarh (1,350 m) is situated on the Mahadeo Hills of the Satpura Range.
This establishes the pair between Dhupgarh Peak and the Satpura Range.

Key Concept

Physiographic Units, Relief Landforms, and Peaks of India
Estimated Time:1m 0s
Question 259Question →

Consider the following statements regarding Black Soil (Regur Soil) in India:

1. It is rich in soil nutrients such as calcium carbonate, magnesium, potash, and lime, but generally poor in nitrogen and phosphorus contents.
2. Due to its high clay content, it develops deep cracks during dry summers, which aids in soil aeration through a process often called 'self-ploughing'.
3. It is predominantly formed by the alluvial deposition of the Ganga and Brahmaputra river systems in northern India.

Which of the statements given above is/are correct?

Show answer & explanation

Answer: 1 and 2 only

Answer

Statements 1 and 2 are correct. Black soil is rich in calcium carbonate, magnesium, potash, and lime, but deficient in nitrogen, phosphorus, and organic matter. High clay content causes it to swell when wet and shrink when dry, forming deep cracks that facilitate self-ploughing. However, it is formed by weathering of Deccan basaltic lava, not alluvial river deposits.
The combination indicating 1 and 2 only is correct because Black Soil contains calcium carbonate, potash, lime, and magnesium, and its clayey nature creates deep cracks upon drying ('self-ploughing'). Statement 3 is false because Black Soil originates from lava rocks of the Deccan Plateau, whereas northern plains consist of alluvial soil.

Step-by-Step Solution

1
Evaluate Statement 1 regarding chemical composition of Black Soil.
Statement 1 is correct. Black soil (Regur) contains high amounts of lime, iron, magnesium, alumina, and potash, but lacks nitrogen, phosphorus, and humus.
Pedological studies of Deccan trap soils confirm this mineral signature.
2
Evaluate Statement 2 regarding physical characteristics and moisture retention.
Statement 2 is correct. High clay content gives black soil high moisture retention; drying causes reticulate cracking that aerates lower soil horizons ('self-ploughing').
Shrink-swell behavior of montmorillonite clay minerals causes this structural phenomenon.
3
Evaluate Statement 3 regarding geographic origin and distribution.
Statement 3 is incorrect. Black soils are residual soils derived from Deccan trap basalt rocks found across Maharashtra, Madhya Pradesh, Gujarat, and northern Karnataka, whereas alluvial soils dominate northern river plains.
Geological origin of regur soil is parent basaltic rock weathering, not river sediment deposition.

Key Concept

Black Soil (Regur) Physical Properties, Chemical Profile, and Geographical Distribution in India
Question 260Question →

Transportation pipelines play a vital role in moving bulk fluids and slurry across India's economic corridors. Match the key transport pipelines listed in List I with their primary operational route and cargo characteristic listed in List II.

Click a left item, then click its matching right item

Items

Hazira-Vijaipur-Jagdishpur (HVJ) Pipeline
Naharkatia-Nunmati-Barauni Pipeline
Kudremukh to Mangalore Pipeline
Salaya-Koyali-Mathura Pipeline

Matches

Show answer & explanation

Answer

Hazira-Vijaipur-Jagdishpur (HVJ) Pipeline matches with First major cross-country natural gas pipeline supplying fertilizer and power plants across western and northern India; Naharkatia-Nunmati-Barauni Pipeline matches with Pioneer inland crude oil pipeline connecting Assam oilfields to eastern refineries in Assam and Bihar; Kudremukh to Mangalore Pipeline matches with Specialized slurry pipeline transporting crushed iron ore from mountain mines to a coastal export port; and Salaya-Koyali-Mathura Pipeline matches with Major crude oil trunk pipeline carrying imported and offshore oil from Gujarat coast to northern inland refineries.
Each pipeline is correctly matched with its specific commodity and route profile: HVJ handles natural gas from western to northern hinterlands; Naharkatia-Barauni handles northeastern crude oil; Kudremukh-Mangalore handles iron ore slurry; and Salaya-Koyali-Mathura handles crude oil imported via the western coast to inland refining hubs.

Step-by-Step Solution

1
Identify the commodity type and primary function of the HVJ Pipeline
HVJ is India's first major cross-country natural gas network linking Hazira (Gujarat) to industrial consumers in MP and UP.
HVJ stands for Hazira-Vijaipur-Jagdishpur and is operated by GAIL for natural gas distribution.
2
Identify the geographical coverage of the Naharkatia-Nunmati-Barauni Pipeline
It originates in Assam (Naharkatia oilfields) and feeds refineries in Guwahati (Nunmati) and Barauni (Bihar).
It was India's first long-distance crude oil pipeline built in the northeastern sector.
3
Determine the mode and cargo transported by the Kudremukh to Mangalore link
It carries iron ore slurry across the Western Ghats to Mangalore port.
Slurry pipelines reduce transport costs for bulk minerals from inland mines to maritime terminals.
4
Determine the role of the Salaya-Koyali-Mathura pipeline infrastructure
It moves imported and Gulf of Kutch crude oil inland to Koyali, Mathura, and Panipat refineries.
Salaya acts as an offshore/coastal receiving terminal for crude oil destined for northern refineries.

Key Concept

Pipeline Transportation Networks in India
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