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Chapter 7: Lifelines of National EconomyClass 10 Social Science — summary, notes, extra questions & NCERT solutions
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The Golden Quadrilateral is a network of:
Summary
This chapter shows how transport, communication and trade act as the lifelines that move goods, people and ideas and bind the country together. It describes the major means of transport — roadways (national highways, the Golden Quadrilateral, state and rural roads), railways, pipelines, waterways and airways — with their advantages and distribution. Each mode suits different needs: roads offer door-to-door service and reach remote areas, railways carry bulk goods and passengers over long distances, pipelines move crude oil, gas and water, waterways are the cheapest for heavy goods, and airways are the fastest. The chapter also covers communication, from personal letters, the postal network and telephones to mass communication through newspapers, radio, television, films and the internet, which keep society informed and connected. Finally, it discusses trade — internal and international — describing India’s major exports and imports, the role of ports and airports as gateways, and the balance of trade, underlining how these networks strengthen national integration and growth.
Roadways and the Golden QuadrilateralRailwaysPipelines and waterwaysAirwaysMeans of communicationInternational trade and tourism
Key terms
National highways
Major roads that link distant parts of the country and state capitals.
Golden Quadrilateral
A network of six-lane super highways connecting Delhi, Mumbai, Chennai and Kolkata.
Pipelines
Channels that transport crude oil, natural gas and water over long distances.
Mass communication
Means such as newspapers, radio and television that reach large audiences.
International trade
The exchange of goods and services between countries.
Balance of trade
The difference between the value of a country’s exports and imports.
Waterways
The cheapest means of transport for carrying heavy and bulky goods.
Tourism
Travel for leisure that has grown as a trade and source of employment.
Extra questions & answers
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Major roads that link distant parts of the country and state capitals.
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Practice quiz · Lifelines of National Economy
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