NCERT Solutions For Class 10 Geography Social Science Chapter 7 Lifelines of National Economy


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Quiz Drive
  1. Northern terminal of the North-south corridor.
  2. The name of National Highway No.2.
  3. The headquarter of the southern railway zone.
  4. The rail gauge with a track width of 1.676 m.
  5. The southern terminal of the National Highway No.7.
  6. A Riverine Port.
  7. Busiest railway junction in Northern India.


  1. Srinagar
  2. Sher-Shah Suri Marg
  3. Chennai
  4. Broad gauge
  5. Kanyakumari
  6. Kolkata Port Trust
  7. Mughalsarai


Answer the following questions in about 120 words. (i) Why are the means of transportation and communication called the lifelines of a nation and its economy? (ii) Write a note on the changing nature of the international trade in the last fifteen years.


(i) The means of transportation and communication are called the lifelines of a nation and its economy due to the following reasons:

  • They help in the production and movement of goods and services.
  • Various means of communication help us in interacting with other in all the parts of the world, and have brought the world closer.
  • Railways help us in conducting various activities like business, touring, and transportation of goods over longer distances.
  • Air transport provides the fastest, most comfortable mode of transport.
  • Pipelines are used for transporting crude oil and petroleum, and natural gas to refineries and fertilizer factories.
  • Water transport is the cheapest means of transport.

These means of transport and communication help in the development of the country. Therefore, they are called the lifelines of a nation and its economy.


(ii) The changing nature of the international trade for India, in the last fifteen years, has been impressive. Tourism too has added to India's upgraded position in international trade. Among the commodities in export, the share of agriculture and allied products has been 9.9%, ores and minerals 4.0%, gems and jewellery 14.7%, petroleum products (including coal) 16.8% in 2010-11. The commodities imported to India include petroleum and petroleum products (28.6%), pearls and precious stones (9.4%), chemicals (5.2%), coal, coke and briquettes (2.7%), machinery (6.4%) in 2010-11. This group includes fertilizers (3.4%), cereals (14.3%), edible oils (17.4%), and newsprint (Paper board manufacture and newsprint 40.3%) in 2010-11. India has emerged as a software giant at international level and it is earning large foreign exchange through the export of Information Technology because of its fast growing Business Process Outsourcing (BPO) sector.


Answer the following questions in about 30 words. (i) State any three merits of roadways. (ii) Where and why is rail transport the most convenient means of transportation? (iii) What is the significance of the border roads? (iv) What is meant by trade? What is the difference between international and local trade?


(i) Merits of roadways:

  • Road transport required much less capital investment than the railways in terms of construction costs.
  • Roads can go through dissected and undulating land areas and through steep mountains.
  • Roads provide door-to-door or warehouse-to-warehouse service.

(ii) In the northern India, rail transport is the most convenient mode of transportation. This is because this region has vast alluvial and level lands that are good for laying tracks, and huge population and high agricultural productivity, making rail transport a profitable venture.

(iii) Border roads are strategically important as they improve accessibility to areas like the northern and northeastern borders, which have a difficult terrain.

(iv) Trade is the movement of goods and services between regions for economic gain. Trade between two or more countries is termed as international trade, while trade occurring in a region within the same country is called local trade.


Multiple choice questions. (i) Which two of the following extreme locations are connected by the east-west corridor? (a) Mumbai and Nagpur (b) Silcher and Porbandar (c) Mumbai and Kolkata (d) Nagpur and Siligudi (ii) Which mode of transportation reduces trans-shipment losses and delays? (a) Railways (b) Roadways (c) Pipeline (d) Waterways (iii) Which one of the following states is not connected with the H.V.J. pipeline? (a) Madhya Pradesh (b) Maharashtra (c) Gujarat (d) Uttar Pradesh (iv) Which one of the following ports is the deepest land-locked and well-protected port along the east cost? (a) Chennai (b) Paradwip (c) Tuticorin (d) Vishakhapatnam (v) Which one of the following is the most important modes of transportation in India? (a) Pipeline (b) Railways (c) Roadways (d) Airways (vi) Which one of the following terms is used to describe trade between two or more countries? (a) Internal trade (b) International trade (c) External trade (d) Local trade


(i)  (b) Silcher and Porbandar

(ii)  (c) Pipeline

(iii)  (b) Maharashtra

(iv)  (d) Vishakhapatnam

(v)  (b) Railways

(vi)  (b) International trade

Benefits of NCERT Solutions

NCERT Solutions for Class 10 contain immensely significant points and for every chapter, each concept is simplified so that it turns out to be easy to remember that expands the odds of scoring commendably in the board exams. NCERT Solutions for class 10 by Extramarks is the best reference material for test preparation. Given below are a couple of points about how these solutions help in exam preparation.
1. It helps students practice loads of questions from every chapter which encourages them to make their concepts more grounded..

2. NCERT Solutions for Class 10 encourages you to upgrade your knowledge and clear your concepts with the goal that you can score well in your exams.

3. These solutions are the best examination materials to know your weak and strong points. It is essential to work on your weak points to score well in the exams. 

4. Most of the questions in exams are asked in a similar arrangement from NCERT textbooks. Hence, students should altogether revise every chapter’s solution to get a good command in subjects

Tips & Strategies for Class 10 Exam Preparation

1. Make a timetable to complete your syllabus and make time for revision.

2. Refer to NCERT Solutions given on the Extramarks website to clear your concepts anytime while preparing for your exams.

3. Start studying with the help of Extramarks – The Learning App to pass your exams with flying colours. It provides complete study material with solved and unsolved papers.

4. It is important to clear all your doubts before the exam with your teachers or Alex (an AI studybot).

5. While reading or learning a chapter, make sure to make notes with algorithms, formulas, theorems, etc., and study them for a quick revision before exams.

6. Practice an ample number of question papers to make your concepts stronger.

7. Take rest and a proper meal. Don’t stress too much.

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Frequently Asked Questions

How to use NCERT Solutions for scoring in class 10 Maths CBSE Board Exams?

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