NCERT Solutions for Class 12 Geography Chapter 7: Transport and Communication

These Class 12 Geography Chapter 7 solutions cover Transport and Communication from Fundamentals of Human Geography (Unit III: Tertiary and Quaternary Activities), the NCERT textbook for the 2026–27 session. The chapter explains how transport provides the network of links and carriers through which trade takes place, the principal modes of transport — land, water, air and pipelines — the major highways, trans-continental railways, sea routes and shipping canals of the world, and how modern communication systems like satellites, optic fibre and the Internet have turned the world into a global village. Below you get step-by-step answers to every NCERT exercise question, key terms, extra practice, MCQs, Assertion–Reason and FAQs.

Class: 12 Subject: Geography Book: Fundamentals of Human Geography Chapter: 7 Unit: III – Tertiary & Quaternary Activities Session: 2026–27
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Class 12 Geography Chapter 7 – Overview

Chapter 7, Transport and Communication, explains that natural resources, economic activities and markets are rarely found in one place, so transport, communication and trade link producing centres with consuming centres. Transport is a service for carrying persons and goods over land, water and air, plus pipelines for liquids and gases. The chapter discusses land transport (roads, highways such as the Trans-Canadian, Pan-American and Stuart Highways, India’s Golden Quadrilateral, border roads, and railways including the Trans-Siberian, Trans-Canadian, Australian Trans-Continental, Orient Express and the proposed Trans-Asiatic line); water transport (major sea routes like the Northern Atlantic ‘Big Trunk Route’, the Mediterranean–Indian Ocean route, the North and South Pacific routes, the Suez and Panama canals, and inland waterways such as the Rhine, Danube, Volga, Great Lakes–St Lawrence Seaway and Mississippi); air transport and inter-continental air routes; and pipelines like Big Inch. It ends with communications — the telephone, satellite communication, optic fibre and cyberspace (Internet) — which more than transport have made the global village a reality.

Key Concepts & Terms

Transport: a service or facility for the carriage of persons and goods from one place to another using humans, animals and vehicles, over land, water and air.

Transport network: several places (nodes) joined together by a series of routes (links) to form a pattern.

Modes of transport: the principal modes are land (roads and railways), water (ocean routes and inland waterways), air, and pipelines. Each (except pipelines) carries both passengers and freight.

Highways: metalled roads connecting distant places, built about 80 m wide with separate lanes, bridges, flyovers and dual carriageways for unobstructed movement — e.g. Trans-Canadian, Alaskan, Pan-American and Stuart Highways, and India’s Golden Quadrilateral.

Border roads: roads laid along international boundaries that integrate remote areas with major cities and serve defence and strategic needs.

Trans-continental railway: a railway that runs across a continent and links its two ends, built for economic and political reasons — e.g. the Trans-Siberian (longest, 9,332 km), Trans-Canadian, Australian Trans-Continental, Union and Pacific, and Orient Express.

Sea routes: oceanic highways needing no construction or maintenance — the busiest is the Northern Atlantic (Big Trunk Route) carrying one-fourth of the world’s foreign trade.

Shipping canals: man-made waterways — the Suez Canal (1869, links Mediterranean and Red Sea) and the Panama Canal (links Atlantic and Pacific via a six-lock system).

Inland waterways: rivers, canals and lakes used for cargo and passengers — the Rhine (world’s busiest), Danube, Volga, Great Lakes–St Lawrence Seaway and Mississippi.

Pipelines: used to transport liquids and gases (water, petroleum, natural gas) for uninterrupted flow — e.g. the Big Inch pipeline in the U.S.A.

Communication & cyberspace: the telegraph, telephone, satellite communication, optic fibre cables (OFC) and the Internet (World Wide Web) — cyberspace is the electronic digital world for communicating and accessing information that has made the ‘global village’ a reality.

NCERT Exercise – Full Solutions

All questions below are reproduced verbatim from the NCERT textbook’s end-of-chapter Exercises. Answers are original, written in exam-ready style.

1. Choose the right answer from the four alternatives given below.

(i) The Trans–Continental Stuart Highway runs between (a) Darwin and Melbourne (b) Edmonton and Anchorage (c) Vancouver and St. John’s City (d) Chengdu and Lhasa

ANSWER (a) Darwin and Melbourne. The Trans-Continental Stuart Highway runs across Australia connecting Darwin on the north coast and Melbourne on the south, passing through Tennant Creek and Alice Springs.

(ii) Which country has the highest density of railway network? (a) Brazil (b) U.S.A (c) Canada (d) Russia

ANSWER (b) U.S.A. Among the given options the U.S.A. has the most extensive rail network, accounting for nearly 40 per cent of the world’s total route length, the densest being in highly industrialised East-Central U.S.A.

(iii) The Big Trunk Route runs through (a) The Mediterranean – Indian ocean (b) The North Atlantic Ocean (c) The South Atlantic Ocean (d) The North Pacific Ocean

ANSWER (b) The North Atlantic Ocean. The Northern Atlantic Sea Route, called the Big Trunk Route, links north-eastern U.S.A. and north-western Europe and carries one-fourth of the world’s foreign trade, making it the busiest sea route.

(iv) The Big Inch pipeline transports (a) Milk (b) Liquid petroleum gas (LGP) (c) Water (d) Petroleum

ANSWER (d) Petroleum. Big Inch is a famous pipeline in the U.S.A. that carries petroleum from the oil wells of the Gulf of Mexico to the north-eastern states.

(v) Which one pair of the following places is linked by Channel Tunnel? (a) London – Berlin (b) Paris – London (c) Berlin – Paris (d) Barcelona – Berlin

ANSWER (b) Paris – London. The Channel Tunnel, operated by the Euro Tunnel Group through England, runs under the English Channel and connects London with Paris.

2. Answer the following questions in about 30 words.

(i) What are the problems of road transport in mountainous, desert and flood prone regions?

ANSWER In mountainous regions, steep slopes and landslides make road building costly and risky. In deserts, shifting sand and a lack of stable surface hinder construction. In flood-prone regions, unmetalled roads become unmotorable and even metalled roads are damaged or submerged during heavy rains and floods, disrupting traffic.

(ii) What is a trans–continental railway?

ANSWER A trans-continental railway is one that runs across an entire continent and links its two ends. Such railways are constructed for economic and political reasons to facilitate long-distance movement of bulky goods and passengers — for example, the Trans-Siberian Railway.

(iii) What are the advantages of water transport?

ANSWER Water transport needs no route construction; the oceans provide a ready highway. The friction of water is far less than that of land, so it is much cheaper and its energy cost is low. It is the most suitable means for hauling bulky materials over long distances between continents.

3. Answer the following questions in not more than 150 words.

(i) Elucidate the statement– “In a well managed transport system, various modes complement each other”.

ANSWER No single mode of transport is best for every purpose, so an efficient system uses each mode for the task to which it is best suited and they complement one another. Road transport is cheaper and faster over short distances and offers door-to-door service. Railways are most suited for carrying large volumes of bulky materials, such as ores and grain, over long distances within a country. Ocean freighters handle the international movement of goods most cheaply over very long distances between continents. Airways are best for high-value, light and perishable goods and for reaching inaccessible areas quickly, though they are costly. Pipelines move liquids and gases continuously. Goods often move by several modes during one journey — for instance, freight may travel by truck to a port, by ship across the ocean, and by rail or road to the final market. Thus, in a well-managed transport system, the different modes supplement and complement each other rather than compete.

(ii) Which are the major regions of the world having a dense network of airways.

ANSWER In the Northern Hemisphere there is a distinct east-west belt of inter-continental air routes. A dense network of airways exists in Eastern U.S.A., Western Europe and South-East Asia. The U.S.A. alone accounts for about 60 per cent of the airways of the world. The chief nodal points where air routes converge or radiate to all continents include New York, London, Paris, Amsterdam, Frankfurt, Rome, Moscow, Karachi, New Delhi, Mumbai, Bangkok, Singapore, Tokyo, San Francisco, Los Angeles and Chicago. In contrast, Africa, the Asiatic part of Russia and South America lack dense air services, and there are limited services between 10°–35° latitudes in the Southern Hemisphere because of sparse population, limited landmass and lower economic development.

(iii) What are the modes by which cyber space will expand the contemporary economic and social space of humans.

ANSWER Cyberspace is the world of electronic computerised space encompassed by the Internet (the World Wide Web). As billions of people use the Internet each year, cyberspace expands the economic and social space of humans through services such as e-mail, e-commerce, e-learning and e-governance. Together with fax, television and radio, the Internet is becoming accessible to more and more people, cutting across place and time. These modern communication systems, even more than transportation, have made the concept of the global village a reality, allowing people to communicate, trade, learn and access government services without physical movement.

Extra Practice Questions

Short Answer Type Questions

Q1. Name the four principal modes of world transportation.

ANSWERThe four principal modes of world transportation are land (roads and railways), water (sea routes and inland waterways), air, and pipelines. All except pipelines carry both passengers and freight.

Q2. What is the Golden Quadrilateral?

ANSWERThe Golden Quadrilateral (GQ), or Super Expressway, is a network of highways in India that connects the four metropolitan cities — New Delhi, Mumbai, Chennai and Kolkata — promoting fast trade and movement among them.

Q3. Why did the Suez Canal greatly reduce travel distance and time?

ANSWERThe Suez Canal, built in 1869 between Port Said and Port Suez, links the Mediterranean Sea with the Red Sea. It gives Europe a new gateway to the Indian Ocean and avoids the much longer route around the Cape of Good Hope, thereby cutting distance and time sharply.

Q4. Why are railways best suited for bulky goods over long distances?

ANSWERRailways can move large volumes of heavy, bulky materials such as ores, grain, timber and machinery at low cost over long distances within a country. Their high embankments also keep them serviceable during floods, when roads become unmotorable.

Q5. What is meant by traffic congestion on roads?

ANSWERCongestion occurs when the road network cannot cope with the volume of traffic using it. Traffic shows peaks (high points) and troughs (low points) during the day, peaks occurring at rush hours before and after work; most cities suffer chronic congestion.

Long Answer Type Questions

Q1. Describe the Trans-Siberian Railway and explain its economic significance.

ANSWERThe Trans-Siberian Railway is the major rail route of Russia, running from St. Petersburg in the west to Vladivostok on the Pacific coast in the east, passing through Moscow, Ufa, Novosibirsk, Irkutsk, Chita and Khabarovsk. It is the most important route in Asia and, at 9,332 km, the longest double-tracked and electrified trans-continental railway in the world. Economically, it has opened up Russia’s Asian region to West European markets. It crosses the Ural Mountains and the Ob and Yenisei rivers; Chita is an important agro-centre and Irkutsk a fur centre. It has connecting links to the south — to Odessa (Ukraine), Baku, Tashkent, Ulan Bator (Mongolia), and to Shenyang and Beijing in China — making it a vital artery for trade and movement across Eurasia.

Q2. Compare the Suez Canal and the Panama Canal.

ANSWERBoth are vital man-made navigation canals serving as gateways of commerce. The Suez Canal (built 1869, in Egypt) links the Mediterranean Sea with the Red Sea between Port Said and Port Suez. It is about 160 km long, 11–15 m deep, and a sea-level canal without locks; about 100 ships cross daily, each taking 10–12 hours. It gives Europe a shorter gateway to the Indian Ocean. The Panama Canal connects the Atlantic Ocean in the east with the Pacific Ocean in the west across the Panama Isthmus between Panama City and Colon. It is about 72 km long and uses a six-lock system through which ships are raised and lowered (26 m up and down) before entering the Gulf of Panama. It shortens the New York–San Francisco voyage by 13,000 km. The economic significance of the Panama Canal is relatively less than that of the Suez, but it is vital to the economies of Latin America.

Q3. Discuss the development and importance of communication systems in the modern world.

ANSWERHuman beings have long used methods of long-distance communication, of which the telegraph and telephone were the most important; the telegraph aided the colonisation of the American West and the telephone helped urbanise America. A major breakthrough came with optic fibre cables (OFC), which transmit large quantities of data rapidly, securely and almost error-free, and with the digitisation of information in the 1990s telecommunication merged with computers to form the Internet. Satellite communication, pioneered by the U.S.A. and former U.S.S.R. since the 1970s, made the unit cost and time of communication independent of distance — it costs the same to communicate over 500 km as over 5,000 km. India contributed with satellites such as Aryabhatt (1975), Bhaskar-I, Rohini and APPLE (1981). Cyberspace — the Internet and World Wide Web — now connects billions of users, expanding economic and social space through e-mail, e-commerce, e-learning and e-governance. These modern communication systems, more than transportation, have made the global village a reality.

MCQs & Assertion–Reason

1. Pipelines are mainly used to transport:

(a) passengers and freight    (b) liquids and gases    (c) bulky ores only    (d) perishable goods

2. The longest double-tracked and electrified trans-continental railway in the world is the:

(a) Trans-Canadian Railway    (b) Orient Express    (c) Trans-Siberian Railway    (d) Union and Pacific Railway

3. The Golden Quadrilateral in India connects:

(a) Delhi, Mumbai, Chennai and Kolkata    (b) Delhi, Jaipur, Agra and Lucknow    (c) Mumbai, Pune, Surat and Goa    (d) Chennai, Bengaluru, Hyderabad and Kochi

4. The Suez Canal links the Mediterranean Sea with the:

(a) Black Sea    (b) Caspian Sea    (c) Red Sea    (d) Arabian Sea

5. The Orient Express runs from:

(a) Paris to Istanbul    (b) London to Moscow    (c) Berlin to Rome    (d) Madrid to Vienna

6. The world’s most heavily used inland waterway is the:

(a) Danube    (b) Volga    (c) Mississippi    (d) Rhine

7. The Panama Canal connects the Atlantic Ocean with the:

(a) Indian Ocean    (b) Pacific Ocean    (c) Arctic Ocean    (d) Red Sea

8. Which mode of transport is the fastest but the most costly?

(a) Railways    (b) Roadways    (c) Air transport    (d) Water transport

9. The Trans-Canadian Railway runs from Halifax in the east to:

(a) Montreal    (b) Vancouver    (c) Winnipeg    (d) Calgary

10. Cyberspace is encompassed by the:

(a) telegraph    (b) satellite radio    (c) Internet (World Wide Web)    (d) pipeline network

Answer key: 1-(b), 2-(c), 3-(a), 4-(c), 5-(a), 6-(d), 7-(b), 8-(c), 9-(b), 10-(c).

For each Assertion–Reason question, choose: (A) Both true and the Reason correctly explains the Assertion; (B) Both true but the Reason is not the correct explanation; (C) Assertion true, Reason false; (D) Assertion false, Reason true.

A-R 1. Assertion: Water transport is much cheaper than land transport.

Reason: The friction of water is far less than that of land and water transport needs no route construction.

A-R 2. Assertion: Air transport is preferred for moving large volumes of bulky goods over long distances.

Reason: Air transport is the fastest means of transportation.

A-R 3. Assertion: The Northern Atlantic Sea Route is the busiest in the world.

Reason: It links two of the most industrially developed regions and carries one-fourth of the world’s foreign trade.

A-R 4. Assertion: Satellite communication has made the unit cost of communication independent of distance.

Reason: It costs the same to communicate over 500 km as it does over 5,000 km via satellite.

A-R 5. Assertion: Roads play a vital role in a nation’s trade and commerce.

Reason: Road transport is the most economical for short distances and offers door-to-door service.

Answer key: 1-(A), 2-(D), 3-(A), 4-(A), 5-(A).

Exam Tips & Common Mistakes

How to score full marks in this chapter

Memorise the start and end points and intermediate cities of the major highways (Stuart, Trans-Canadian, Alaskan, Pan-American) and trans-continental railways (Trans-Siberian, Trans-Canadian, Australian, Orient Express). Keep the key figures ready — Trans-Siberian 9,332 km, world road length about 15 million km, North America 33% of roads and 40% of rail, Big Trunk Route carrying one-fourth of world trade. For comparison questions (Suez vs Panama, road vs rail vs air), use a clear two-sided structure with examples. Always link the “modes complement each other” idea to specific goods and distances.

Common mistakes to avoid

  • Confusing the Suez Canal (Mediterranean–Red Sea, no locks) with the Panama Canal (Atlantic–Pacific, six-lock system).
  • Saying air transport carries bulky goods — it is best only for high-value, light and perishable goods.
  • Mixing up highway end-points, e.g. Stuart Highway (Darwin–Melbourne) with the Alaskan Highway (Edmonton–Anchorage).
  • Forgetting that the Big Trunk Route is the North Atlantic route, not the Pacific.
  • Writing the Big Inch pipeline carries gas — it carries petroleum.
  • Confusing the Channel Tunnel (London–Paris) with the Orient Express (Paris–Istanbul).

Frequently Asked Questions

What is Chapter 7 of Class 12 Geography (Fundamentals of Human Geography) about?

Chapter 7, Transport and Communication, explains how transport links producing and consuming centres, the four modes of transport (land, water, air and pipelines), major highways, trans-continental railways, sea routes and shipping canals, inland waterways, air routes, pipelines, and modern communication systems such as satellites, optic fibre and the Internet that have created the global village.

What is the difference between the Suez Canal and the Panama Canal?

The Suez Canal (1869) links the Mediterranean Sea with the Red Sea and is a sea-level canal without locks. The Panama Canal links the Atlantic Ocean with the Pacific Ocean across the Panama Isthmus and uses a six-lock system to raise and lower ships. The Suez is economically more significant globally, while the Panama Canal is vital to Latin America.

How many exercise questions are there in Class 12 Geography Chapter 7?

The NCERT exercise for Chapter 7 has three parts: Question 1 has five multiple-choice items (i–v), Question 2 has three short-answer questions (about 30 words), and Question 3 has three questions in not more than 150 words — all answered step by step on this page.

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