Map of India | ICSE Class 10 Geography Notes

This note covers India's reference lines, mountains, peaks, pass, plateaus, plains, desert, rivers, coastal features, water bodies, seasonal winds, mineral locations, soils, cities and population distribution.

How do reference lines and symbols help you read India's map?

An outline map shows the basic shape of a territory and provides a framework for locating features. A legend, or key, explains the symbols used. A point can locate a city; a line can trace a river; shading can distinguish an area.

Latitude and longitude

Latitude is angular distance north or south of the Equator, the reference circle halfway between the poles. Longitude is angular distance east or west of the Prime Meridian, the reference meridian through Greenwich. A meridian is a line joining the poles.

In coordinate labels, ° means degrees and ′ means minutes of angular measurement; 60 minutes make one degree. N means north and E means east. These minutes measure angles, not elapsed time.

The Standard Meridian is the selected longitude whose local time supplies a country's standard time. Indian Standard Time, abbreviated IST, is five hours and thirty minutes ahead of Greenwich Mean Time, abbreviated GMT, the time reference at Greenwich.

Keep the Tropic of Cancer and the Standard Meridian separate: one identifies a north-south position and the other an east-west position. On the map, their lines run in different directions. The administrative map shows the Tropic crossing central India.

A practical locating sequence

1. Identify whether the requested feature is a point, line, area or movement.
2. Find a nearby reference, such as a coast, river, mountain belt or state.
3. Place the symbol or shading in the correct position and give it a clear label.
4. Check the location against surrounding features and check that every symbol is explained.

For marking, place and name the requested feature yourself. For identification, recognise the feature already indicated. Rivers, reference lines, mineral locations and cities belong to the identification group; the other feature groups below require marking. Practise both tasks without treating them as interchangeable.

Where should the mountains, peaks and Karakoram Pass be located?

A mountain range is a connected belt of mountains, while a peak is an individual summit. A pass is a gap or lower route through a mountain barrier. Their symbols must convey these different kinds of feature.

Northern and northeastern features

The Himalayas form the great northern mountain belt. Their alignment changes along the arc; it is not a straight horizontal line across the country. The Karakoram lies in the far north, beyond the main Himalayan belt shown farther south.

Mount Godwin Austin (K2) is a peak in the Karakoram; K2 is its identifying name, not a mathematical symbol. Mount Kanchenjunga belongs in the Sikkim Himalayan region. Place peak symbols at their sites rather than writing a summit name across an entire mountain system.

Karakoram Pass lies in the far northern mountain region, northeast of Leh. It is east of K2. The shared word Karakoram does not make the range, the pass and K2 the same feature: a range, a route and a summit need distinct locations.

The Khasi Hills are in Meghalaya, south of the Brahmaputra valley. They form part of the Meghalaya Plateau. Do not move their label into the Himalayan arc merely because they are in northeastern India.

Central and southern ranges

A valley is an elongated low area between higher land. A plateau is an elevated, comparatively level or uneven table-like area. Peninsular India is the southern landmass projecting into the sea; a peninsula has water on three sides.

The Western Ghats are comparatively higher and more continuous than the Eastern Ghats. The eastern hills are interrupted by rivers flowing towards the Bay of Bengal. Use these relationships to distinguish the two belts before adding their labels.

The map labels the northern mountain arc, K2, Kanchenjunga, central ranges, coastal Ghats and major plateaus. Its key distinguishes mountain ranges and peaks, while shaded height bands show broad differences in relief.

See Fig. 2.2 in your NCERT textbook

How are the plateaus, Gangetic Plains and Thar Desert related?

A plain is an extensive area of relatively level land. Relief means the variation in the height and form of the land surface.

Two plateau locations

The Deccan Plateau occupies a large part of Peninsular India. The Deccan is bordered by the Western Ghats, Eastern Ghats and the northern Satpura, Maikal and Mahadeo hill region.

The Chota Nagpur Plateau belongs in eastern India, principally in the Jharkhand region. Locate it south of the Gangetic Plains and west of the lower Ganga region. It is not the same plateau as Meghalaya, which is farther northeast.

Use a region symbol or light shading for a plateau. A single point can help position its label, but it cannot convey the spread of the landform. Keep the shaded area distinct from the adjoining plains and coastal strips.

Plains below the Himalayas

The Gangetic Plains follow the Ganga system across northern India, south of the Himalayan foothills. A river system consists of a main river and its tributaries, streams or rivers joining it. The Gangetic Plains belong to the wider northern plains formed by the Indus, Ganga and Brahmaputra systems. The term Gangetic identifies the Ganga portion, not the whole northern plain.

These river plains contain alluvium, material such as sand, silt and clay deposited by flowing water. The Ganga and its tributaries therefore provide a useful framework for recognising the plain as a broad belt rather than a narrow river line.

The desert west of the Aravali

The Thar, or Great Indian Desert, lies to the northwest of the Aravali Hills, with its Indian extent mainly in western Rajasthan. Arid means very dry. Its dunes, mounds or ridges of wind-deposited sand, and sparse vegetation belong to a dry landscape.

The Aravali belt is a useful reference between the desert and lands farther east. Check that the desert shading lies on the correct side of this range and does not spread indiscriminately across Rajasthan or into the Gangetic Plains.

Where are the coastal plains, gulfs, strait, sea and lake?

Coastal plains lie between the sea and adjoining inland uplands. The western coastal plain is generally narrower than the eastern plain. The named coastal stretches must be located on the correct shore before their regional names are added.

Four coastal stretches

The Konkan and Malabar face the Arabian Sea; the Northern Circars and Coromandel face the Bay of Bengal. The physical map labels these stretches along the coast. Put coastal labels beside the coastal belt, rather than deep inside the Deccan Plateau.

Distinguishing water bodies

A gulf is an inlet of the sea extending into the land. A strait is a narrow water passage connecting larger water bodies and separating land areas. A lake is an inland body of water, while a sea forms part of the ocean system.

Both Gujarat gulfs open towards the Arabian Sea, but they occupy different sides of Kathiawar. The Gulf of Mannar and Palk Strait separate India from Sri Lanka, yet their labels belong in different stretches of water.

The Jhelum flows through Srinagar and Wular Lake. This river association helps locate Wular inland in Kashmir. It should not be confused with a coastal inlet or with a water body beside the southern peninsula.

How can you identify the Indus and its five listed tributaries?

The Indus system occupies the northwestern part of the river map. Begin with the Indus as the main river and then recognise the connected tributary courses. Its tributaries drain different valleys before their waters ultimately join the same main system.

Recognising the northwestern system

The Indus is the westernmost of the major Himalayan rivers in India. Its upper course runs northwest through the high mountain region, before the river turns towards its lower course through Pakistan and reaches the Arabian Sea.

The five listed tributaries are Jhelum, Chenab, Ravi, Beas and Satluj. Learn the courses as a connected system. A tributary can reach the Indus through another tributary; the five rivers do not all need separate direct junctions with the main river.

The source of a river is where it begins. Its mouth is where it enters the sea, a lake or another river. A confluence is the meeting of rivers. Source, mouth and confluence are different kinds of reference point.

Following a line rather than guessing from a label

Trace a labelled river into the neighbouring region to check its identity. For example, the Beas-Satluj connection and the Jhelum-Wular association give stronger clues than judging a river solely by its position in a crowded group of lines.

Keep the mountain setting visible while revising. The tributaries descend from the northern uplands towards the plains. Their lower connections continue beyond India's boundary, so a country outline by itself may show only part of the complete river system.

How do you recognise the Ganga system and Brahmaputra?

The Ganga enters the plains at Haridwar and flows towards the southeast and east. Its system includes tributaries from the Himalayas and from the Peninsular Plateau. A drainage basin is the area drained by a river and its tributaries.

The Ganga and Yamuna connections

The Yamuna flows to the west of the Ganga in the upper plains and joins it at Allahabad. The Chambal and Betwa come from the Peninsular Plateau and join the Yamuna. Do not identify them as independent rivers flowing directly to the sea.

The other listed Ganga tributaries are Ghaghra, Gomti, Gandak and Kosi. Ghaghra is also written Ghaghara, and Gomti as Gomati. These spelling variants refer to the same respective rivers, rather than to additional river systems.

The northeastern river

The Brahmaputra runs eastward in Tibet as the Tsangpo, bends through the eastern mountains and flows southwest through Assam. Near Dhubri it turns south into Bangladesh. The long course through Assam is an especially useful identifying feature.

The Brahmaputra valley lies north of the Khasi Hills. These neighbouring features provide a cross-check: the river belongs in the valley, and the hill label belongs farther south. Farther west, the Ganga and its tributaries occupy a separate part of the northern plains.

The map traces the Indus tributaries in the northwest, the Ganga network across the northern plains and the Brahmaputra through the northeast. It also shows the Peninsular rivers and a key for the water divide, which separates drainage areas.

See Fig. 3.2 in your NCERT textbook

How do the major Peninsular rivers differ in direction and position?

Most major Peninsular rivers flow from west to east. The Narmada and Tapti are important exceptions, flowing west towards the Arabian Sea. Tapti is also called Tapi; Cauveri is also written Kaveri. Recognise both forms of each name.

Eastern outlets and river lengths

Along the eastern side of the peninsula, the major rivers in north-to-south order are Mahanadi, Godavari, Krishna and Cauveri. They reach the Bay of Bengal. A delta is a depositional landform built by river sediment near the mouth, often crossed by branching channels.

The table supplies lengths as supporting reference data. km means kilometres, a unit of distance. Length alone does not locate a river: combine the number with its source region, direction and outlet.

The Mahanadi passes through Odisha. The Godavari rises in Maharashtra's Nasik district; the Krishna rises near Mahabaleshwar. The Cauveri begins in the Brahmagiri Hills in Karnataka. Use these positions to distinguish the four east-flowing courses.

Case study: Narmada between two ranges

The Narmada rises on the western side of the Amarkantak Plateau. It travels west in a rift valley, a long depression associated with faults, or fractures, in the Earth's crust. The Vindhyas lie north of the valley and the Satpura south.

After flowing about 1,312 km, the river meets the Arabian Sea south of Bharuch. Its mouth is an estuary, a broad river outlet affected by the sea. On the map it enters the Gulf of Khambhat region. The Tapti lies farther south.

This case joins several map features into one relationship: Vindhyas, Narmada, Satpura and the western sea outlet. Identify the river by checking both the surrounding ranges and the direction of its course. An eastward arrow towards the Bay of Bengal would contradict those connections.

Case study: Cauveri across the southern peninsula

The Cauveri rises in Karnataka's Brahmagiri Hills, crosses the southern peninsula and reaches the Bay of Bengal through Tamil Nadu. At 800 km, its course lies south of the Krishna. Its lower course and delta provide a reference for the southeastern coast.

The upper catchment, meaning the area collecting water for the upper river, receives southwest monsoon rain. The lower part receives northeast monsoon rain. The river therefore carries water throughout the year, with comparatively less fluctuation than other Peninsular rivers.

Keep that comparison qualified: “comparatively less fluctuation” does not mean an identical flow throughout the year. For map identification, connect the Karnataka source region, the route into Tamil Nadu and the eastern outlet. These are more useful than treating the name as a label to memorise independently.

How should the seasonal winds and western disturbances be shown?

A monsoon is a seasonal reversal of wind direction. Wind names indicate the direction from which the air comes. An arrowhead shows where it is going. Thus a southwest wind moves from the southwest towards the northeast, although its route can bend.

Southwest monsoon branches

The Arabian Sea branch approaches the western coast from the Arabian Sea. Some winds rise against the Western Ghats; other branches continue towards central and northwestern India. Draw the approach from the sea towards the land and allow for these different routes.

The Bay of Bengal branch approaches from the Bay of Bengal. It enters West Bengal and Bangladesh from the south and southeast. One part moves west along the Ganga plains; another moves up the Brahmaputra valley towards the north and northeast.

The Khasi Hills receive winds from a sub-branch of the Bay of Bengal flow. The overall seasonal name does not require every arrow to point in the same direction. Atmospheric pressure, the force exerted by air per unit area, varies from place to place. Mountains and the distribution of this pressure modify the paths.

Northeast monsoon and western disturbances

Northeast monsoon arrows should show air moving from the northeast towards the southwest over the Bay of Bengal and towards the southeastern coast. The flow is broadly from land towards sea, but winds passing over the bay can gain moisture.

Western disturbances are travelling winter weather systems associated with shallow depressions, weather systems with lower pressure than their surroundings, from the Mediterranean region. They move east across western Asia towards northwestern India. Their path must be distinguished from the southwest monsoon's approach over the Arabian Sea.

Most parts of India do not receive winter rainfall, but northwestern India and the southeastern coast are important exceptions. The western disturbances bring some winter rain to the northwestern plains and snowfall to the lower Himalayas.

On separate India outlines, draw and label the Arabian Sea and Bay of Bengal branches, the northeast monsoon towards the southeastern coast, and the western-disturbance path entering northwestern India from the west. Add arrowheads showing movement and a key identifying each route.

Use separate outlines when practising different seasons. A map crowded with unlabelled arrows can hide the distinction between the summer monsoon, northeast winter winds and weather systems arriving from the west.

Where should alluvial, black and red soils be shaded?

Soil distribution means the pattern of soil types across an area. Soils occupy regions rather than isolated points. Use distinct shading and a legend, keeping the marked regions broad enough to show their distribution without covering unrelated areas.

Alluvial soil

Alluvial soil is formed from river-deposited material. It covers the northern plains associated with the Indus, Ganga and Brahmaputra systems. It also occurs on the eastern coastal plains, particularly in the Mahanadi, Godavari, Krishna and Cauveri deltas.

Do not restrict alluvium to a narrow line beside the Ganga. Its distribution includes extensive plains and delta areas. At the same time, avoid extending the alluvial shading over the Himalayan mountains merely because rivers descend from them.

Black and red soils

Black soil, also called regur, is associated with the northwestern Deccan lava region. It occurs over plateaus in Maharashtra, Saurashtra, Malwa, Madhya Pradesh and Chhattisgarh, with extensions along the Godavari and Krishna valleys. It is well known for holding moisture.

Red soil develops on crystalline igneous rocks, composed of interlocking crystals, in low-rainfall areas of the eastern and southern Deccan. Igneous rocks form from cooled molten rock. Red and yellow soils also occur in parts of Odisha and Chhattisgarh. Iron in the rocks contributes the reddish colour.

The black-soil and red-soil regions do not form two perfectly neat blocks. A national soil map simplifies a varied distribution. Follow the shown boundaries and patches rather than filling an entire state simply because one of its soil types is named.

The map's legend distinguishes soil categories, including alluvial, black, and red and yellow soils. Alluvial shading follows the northern plains, while black and red-and-yellow patterns occupy contrasting parts of the peninsula.

Reference: NCERT Class 10, Resources and Development, page 8

The reference map combines red and yellow soils in one category. Use it to recognise the broad region, while labelling the requested red-soil distribution clearly. Not every place within this combined category has exclusively red soil.

How can the four mineral and energy locations be distinguished?

Petroleum means mineral oil. An oilfield is an area containing oil deposits, and offshore means situated at sea away from the coast. These terms help separate the two petroleum locations from the iron-ore and coal locations.

Resource and place together

An ore is mineral material from which a metal can be extracted economically. Singhbhum is associated with iron ore, including the mining areas of Gua and Noamundi. Jharia is associated with coal. Their location in the same state does not make their resources interchangeable.

Digboi belongs in Assam, not on the western coast. Mumbai High belongs at sea, not on the city dot for Mumbai. These two checks distinguish the onshore northeastern oilfield from the offshore western oilfield.

Reading a resource map

A resource map can use different signs for coalfields, oilfields and mines. Read the legend before identifying a symbol. A mine is a place where minerals are extracted; a broader field may contain several extraction sites.

When revising, pair each location with its resource and its regional position. “Jharia, coal, Jharkhand” is a complete association. Remembering the place alone can lead to confusing coal and iron symbols in the crowded eastern mineral belt.

Note: Mumbai is a city on the western coast; Mumbai High is an offshore oilfield. An identification question can indicate either one, so first check whether the marked point lies on land or at sea.

How can you identify the eight cities by regional position?

A city location is represented by a point, even though the actual settlement covers an area. Find the dot before reading the nearby label. The text may be displaced to keep it clear of other features.

The complete city group

Kochi is also shown as Cochin on some maps. Keep the city name used in the question tied to the same coastal location. Similarly, recognise Allahabad by the Ganga-Yamuna confluence, not merely by a point somewhere within Uttar Pradesh.

Checks that separate nearby possibilities

Mumbai and Kochi are both on the western coast, but Kochi lies much farther south. Chennai belongs on the eastern coast. Hyderabad and Bengaluru lie inland; Bengaluru is south of Hyderabad. These contrasts help prevent shifting an inland city onto a coast.

Delhi lies north of the Tropic of Cancer, while Mumbai, Hyderabad, Bengaluru, Chennai and Kochi lie south of it. The administrative map provides the state framework for these positions. Check the latitude line and coastline together rather than relying on one cue.

A state name identifies a broad region and is not a substitute for the city's point. For a coastal city, check the correct side of the peninsula; for Allahabad, check the confluence; for Delhi, check the Yamuna in northern India.

How should dense and sparse population regions be shown?

Population distribution describes where people live. Population density is the number of people per unit area, commonly per square kilometre. A square kilometre is the area of a square with sides one kilometre long. Density allows areas of different sizes to be compared.

Broad regions and local variation

Densely populated areas have many people relative to their area; sparsely populated areas have relatively few. The northern plains, deltas and many coastal areas have higher concentrations than the Himalayas and much of the dry western region.

The Gangetic belt, including Uttar Pradesh, Bihar and West Bengal, is an important densely settled region. Kerala and Tamil Nadu also have high densities. Arunachal Pradesh and high Himalayan areas provide examples of comparatively sparse settlement.

Do not shade every part of a state as identical in population concentration. Mountains, plains, cities and rural areas differ within states. A map of state averages shows a broad comparison; it does not locate every settlement or every locally crowded area.

Explaining the pattern

Terrain, climate and water availability influence settlement. Fertile soil supports plant growth well. Fertile river plains support agriculture and have a long history of settlement. Transport development, industries and urbanisation also concentrate population. Urbanisation means the growth of towns and cities and of the population living in them.

Dry regions and difficult mountain terrain often support fewer people, but irrigation, the artificial supply of water to crops, and economic development can alter this pattern. Irrigation in Rajasthan and mineral and energy development in Jharkhand illustrate why physical conditions alone do not explain every population concentration.

The map is labelled 2011 and uses five density classes in persons per square kilometre. It shows contrasting shading across the northern plains, Himalayan region and peninsula. Its values describe the stated census year, not an undated current population.

See Fig. 1.2 in your NCERT textbook

For a dense-or-sparse shading task, identify the requested region, apply a distinct pattern and explain it in the key. Keep the regional classification separate from an exact numerical density unless the question supplies a year and a numerical legend.

Glossary

• Latitude — Angular distance north or south of the Equator, expressed in degrees and angular minutes.
• Longitude — Angular distance east or west of the Prime Meridian through Greenwich, expressed in degrees.
• Legend — The key explaining the meaning of symbols, shading and colours used on a map.
• Plateau — An elevated area of land with a comparatively level or uneven table-like surface.
• Pass — A gap or lower route through a mountain barrier, distinct from an individual summit.
• Alluvium — Material such as sand, silt and clay transported and deposited by flowing water.
• Tributary — A river or stream that joins another river and contributes water to its system.
• Confluence — The place where rivers meet and their waters continue together in a shared channel.
• Drainage basin — The area drained by a river together with all of its tributaries.
• Delta — A depositional landform built by river sediment near the mouth, often crossed by branching channels.
• Estuary — A broad river outlet affected by the sea into which the river flows.
• Strait — A narrow water passage connecting larger water bodies while separating adjacent areas of land.
• Monsoon — A seasonal reversal of wind direction, associated in India with contrasting seasonal wind systems.
• Offshore oilfield — An area of oil deposits located beneath the sea away from the land coast.
• Population density — The number of people per unit area, commonly expressed as persons per square kilometre.

Common errors and misconceptions

• Misconception: The Tropic of Cancer is India's Standard Meridian. Correct: The Tropic is a latitude at 23°30′ N; the Standard Meridian is a longitude at 82°30′ E.
• Misconception: K2, Karakoram Pass and the Karakoram range are interchangeable labels. Correct: K2 is a peak, the pass is a mountain route, and the range is a mountain belt.
• Misconception: Every major Peninsular river flows east. Correct: Most do, but the Narmada and Tapti flow west towards the Arabian Sea.
• Misconception: Chambal and Betwa join the Ganga directly. Correct: They join the Yamuna, which joins the Ganga at Allahabad.
• Misconception: Every southwest monsoon arrow must point northeast. Correct: Relief modifies the paths; part of the Bay of Bengal branch moves west along the Ganga plains.
• Misconception: Mumbai High should be marked at the Mumbai city dot. Correct: Mumbai High is an offshore oilfield west of the city in the Arabian Sea.
• Misconception: Black soil covers the entire Deccan Plateau. Correct: Black soils are particularly associated with the northwestern Deccan; red soils occupy extensive eastern and southern areas.
• Misconception: A state's average population density describes every location within it. Correct: The average conceals local differences between cities, rural areas, plains and mountains.

Exam-style questions with model answers

Q1. Reference line A is marked 23°30′ N and line B is marked 82°30′ E. N denotes north of the Equator and E east of Greenwich. Identify each line and state whether it is a latitude or longitude. [2 marks]

1. Line A is the Tropic of Cancer, a latitude north of the Equator.
2. Line B is India's Standard Meridian, a longitude east of Greenwich.

Q2. Identify three water bodies from this name bank: Gulf of Kutch, Gulf of Khambhat, Palk Strait. A lies between Kutch and northern Kathiawar; B lies east of Kathiawar; C is the narrow passage between Tamil Nadu and northern Sri Lanka. Give the name and locating clue for each. [3 marks]

1. A is the Gulf of Kutch. The clue places this inlet between Kutch and the northern side of Kathiawar.
2. B is the Gulf of Khambhat. Its position east of Kathiawar distinguishes it from the gulf labelled A.
3. C is Palk Strait. It is identified by the narrow water passage separating Tamil Nadu from northern Sri Lanka.

Q3. A resource map's key gives: Mumbai High, offshore petroleum in the Arabian Sea west of Mumbai; Digboi, petroleum in eastern Assam; Singhbhum, iron ore in southern Jharkhand; Jharia, coal in Jharkhand. Write four separate resource-location associations using this information. [4 marks]

1. Mumbai High is the petroleum location offshore in the Arabian Sea, west of Mumbai; its symbol belongs at sea.
2. Digboi is the petroleum location in eastern Assam, distinguishing this northeastern oilfield from the offshore location near Mumbai.
3. Singhbhum is associated with iron ore in southern Jharkhand, so the location must be paired with the iron-ore symbol.
4. Jharia is associated with coal in Jharkhand, so it must be distinguished from the state's iron-ore location at Singhbhum.

Q4. Match five city clues to these names: Delhi, Mumbai, Chennai, Hyderabad, Allahabad. A is on the Yamuna in northern India; B is on Maharashtra's Arabian Sea coast; C is on Tamil Nadu's Bay of Bengal coast; D is inland in Telangana; E is at the Ganga-Yamuna confluence. State each name with its supplied locating evidence. [5 marks]

1. A is Delhi. Its supplied position on the Yamuna in northern India identifies the inland city, rather than a coastal location.
2. B is Mumbai. The clue places it in Maharashtra on the Arabian Sea coast, on the western side of the peninsula.
3. C is Chennai. Its location on Tamil Nadu's Bay of Bengal coast identifies the eastern coastal city in the given group.
4. D is Hyderabad. The clue places this city inland in Telangana, so its point should not be shifted onto either coastline.
5. E is Allahabad. The meeting of the Ganga and Yamuna is the supplied locating feature that distinguishes this city from the others.

Q5. A river is described as flowing west between the Vindhyas to its north and the Satpura to its south, travelling about 1,312 km and reaching the Arabian Sea south of Bharuch. Identify the river and state its direction and its relationship to the two ranges. [3 marks]

1. The river is the Narmada. Its westward valley route and outlet south of Bharuch identify it from the supplied description.
2. It flows west towards the Arabian Sea, as specified in the description, and its outlet lies south of Bharuch.
3. Its valley lies between the Vindhyas on the northern side and the Satpura on the southern side, as specified.

Q6. Four wind-route cards describe: A, the southwest monsoon approaching the western coast over the Arabian Sea; B, the southwest monsoon entering from the Bay of Bengal and turning partly west along the Ganga plains; C, northeast winds crossing the bay towards the southeastern coast; D, winter disturbances travelling east from the Mediterranean region into northwestern India. Name each route and state its movement. [4 marks]

1. A is the Arabian Sea branch of the southwest monsoon, approaching India's western coast from the Arabian Sea.
2. B is the Bay of Bengal branch of the southwest monsoon, with part of its flow moving west along the Ganga plains.
3. C is the northeast monsoon, moving from the northeast towards the southwest across the bay towards the southeastern coast.
4. D represents western disturbances, travelling east from the Mediterranean region towards northwestern India during the winter season.

Q7. A map key supplies six associations: Deccan Plateau, between the Western and Eastern Ghats; Chota Nagpur Plateau, principally Jharkhand; Gangetic Plains, along the Ganga south of the Himalayan foothills; Thar, northwest of the Aravali; Nilgiris, meeting of the Western and Eastern Ghats; Khasi Hills, Meghalaya south of the Brahmaputra valley. Give one separate locating statement for each feature. [6 marks]

1. The Deccan Plateau should be located in Peninsular India between the Western and Eastern Ghats, using these hill belts as references.
2. The Chota Nagpur Plateau should be located principally in the Jharkhand region of eastern India, following the supplied regional association.
3. The Gangetic Plains should form a broad belt along the Ganga, south of the Himalayan foothills, rather than a single point.
4. The Thar Desert should be placed northwest of the Aravali, checking the correct side of the range before shading the region.
5. The Nilgiris should be located where the Western and Eastern Ghats meet, using the junction of those hill systems as the clue.
6. The Khasi Hills should be placed in Meghalaya, south of the Brahmaputra valley, keeping the hill location distinct from the river valley.

Q8. A soil map describes region A as river-deposited plains along the Ganga, B as the northwestern Deccan lava region, and C as eastern and southern Deccan areas with reddish soils developed on crystalline igneous rocks. Identify the dominant soil category associated with each description and give its supplied clue. [3 marks]

1. Region A is associated with alluvial soil. Its description identifies river-deposited material across the plains along the Ganga.
2. Region B is associated with black soil. The northwestern Deccan lava region supplies the main locating clue in the question.
3. Region C is associated with red soil. The eastern and southern Deccan position and reddish soil on crystalline igneous rocks provide the evidence.

Key takeaways

• Distinguish point, line, area and movement symbols before placing a city, river, plateau or wind route on an outline map.
• The Tropic of Cancer is a latitude; India's Standard Meridian is a longitude used to establish a common standard time.
• Use mountain-river relationships: the Narmada flows west between the Vindhyas to its north and Satpura to its south.
• The Mahanadi, Godavari, Krishna and Cauveri reach the Bay of Bengal; Narmada and Tapti reach the Arabian Sea.
• Separate the Arabian Sea and Bay of Bengal monsoon branches, and distinguish both from northeast winds and western disturbances.
• Mumbai High and Digboi are oil locations; Singhbhum is associated with iron ore and Jharia with coal.
• Alluvial, black and red soils occupy broad regions whose boundaries should follow the map rather than entire state outlines.
• Population shading shows regional concentration, while a dated numerical density map describes people per unit area for its stated year.

Test yourself

Which two named gulfs lie beside different sides of Kathiawar?

The Gulf of Kutch lies to its north, while the Gulf of Khambhat lies to its east.

Which river passes through Wular Lake?

The Jhelum flows through Srinagar and Wular Lake before continuing towards Pakistan.

How do the Beas and Satluj connect?

The Beas meets the Satluj near Harike in the Punjab plains.

Which river receives the Chambal and Betwa?

The Yamuna receives both rivers before joining the Ganga at Allahabad.

Where do the Western and Eastern Ghats meet?

The two hill systems meet at the Nilgiri Hills in southern India.

Where is the Andaman Sea in relation to the island chain?

It lies east of the Andaman and Nicobar Islands, towards Myanmar and Thailand.

Why is Mumbai High different from Mumbai on a map?

Mumbai is a coastal city; Mumbai High is an offshore oilfield in the Arabian Sea west of it.

What does population density measure?

It measures the number of people per unit area, commonly per square kilometre.