Geography and Economics Matriculation 10
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GEOGRAPHY AND ECONOMICS MATRICULATION 10 Untouchability is a sin Untouchability is a crime Untouchability is inhuman TAMILNADU TEXTBOOK CORPORATION COLLEGE ROAD, CHENNAI - 600 006. Government of Tamilnadu First Edition - 2006 CHAIRPERSON Tmt. M. MANIMEKALAI Principal DIET, Aduthurai, Thanjavur Dist. - 612 101. REVIEWERS Geography Economics Thiru C. SUBRAMANIAN Tmt.GIRIJASESHADRI Principal, Principal, SBIOAModel Mat. Hr. Sec. School Jaigopal Garodia Hindu Vidyalaya Mogappair Eri Scheme Mat. Hr. Sec. School, West Mambalam Chennai - 600 037. Chennai - 600 033. Tmt.PRASANNARADHAKRISHNAN Principal GKD Mat. Hr. Sec. School Perianaickenpalayam Coimbatore - 20. AUTHORS Geography Tmt.V.MEENAKSHI Tmt.M.NAGAMEENA Lecturer in Geography Zion Mat. Hr. Sec. School DIET, Indira Nagar, Tambaram, Thirur, Chennai - 60 073. Thiruvellore Dist. Economics Tmt.SEETHASUBRAMANIUM Tmt.V.VIDYAVATHI Headmistress Vice Principal, Sri Sankara Vidyalaya Mat. Hr. Sec. School, Jaigopal Garodia Vivekananda Vidyalaya East Tambaram, Chennai - 600 059. Mat. Hr. Sec. School, Anna Nagar Chennai - 600 040. Price : Rs. This book has been prepared by The Directorate of Matriculation Schools on behalf of the Government of Tamilnadu. This book has been printed on 70 G.S.M. paper Printed by offset at : ii PREFACE Based on the Tenth Matriculation Syllabus, this book aims to throw light upon Geography and Economics through a seamless blend of topics such as agriculture, industries, transport and communication and latest developments in remote sensing techniques. This book, not only describes the nature of resources, their availability and utilisation but also their conservation and sustainable development. The diffusion of science and technology in all sectors has been described well, along with the emphasis on values of cultural heritage. It is imperative that a student who learns geography should also know about the economy of the country he lives in. So that, he can judiciously utilise the available resources to the optimum extent. With humble pride, we present this Tenth standard book on Geography and Economics to the students. We believe that this book will be a perfect handbook to the teachers of Geography and Economics. We hope that this book will be of immense value for the students to inspire them to be great Geographers and Economists in future. Tmt. M. Manimekalai Chairperson iii CONTENTS Page No. GEOGRAPHY Unit I Chapter 1 : India - Position 1 Chapter 2 : India - Physiography 10 Chapter 3 : Climate, Soil,Vegetation andWild life 25 Chapter 4 : Irrigation and Multipurpose Projects 43 Chapter 5 : Environmental Issues and Management 54 Unit II Chapter 6 : Agriculture 71 Unit III Chapter 7 : Industries 90 Chapter 8 : Transport and Communication 110 Unit IV Chapter 9 : Project Work 127 Unit V Chapter 10 : RemoteSensing 138 ECONOMICS Unit I Chapter 1 : Economic Development and 147 Economic Systems Unit II Chapter 2 : Natural Resources and Economic 162 Problems Facing our Country Unit III Chapter 3 : Price and Cost Theory 189 Unit IV Chapter 4 : Trade 208 Unit V Chatper 5 : National Income 219 iv UNIT I Chapter 1 INDIA - POSITION Learning Objectives To know the location and position of India. To identify India as a subcontinent. To understand the administrative divisions of India. To appreciate the unity in diversity of India. To identify and locate the state and union territory with their capitals. “India is a country of great geographical extent. Its size is so vast that it is often described as a subcontinent. Like a giant, it sprawls between the snowy height of the Himalayas and the shores of the Indian Ocean, which washes the land for thousands of Kilometres from Bengal to Kutch. The land stretches on all sides encompassing the vast expansion of the northern plains, the thirsty sands of the Thar in the west, the intricate maze of Indo-Myanmar hills on the east, the uneven plateau surface, the ancient hills and the coconut bearing coastal plains on the south, and the lofty snowcapped mountains on the north. The land gets abundance of sunshine from the tropical sun and splashing rains from the monsoons - the two elements together exerting a tremendous impact on the diversity of its teeming millions. This is India, the dispenser of our destiny - a destiny having a remarkable continuity, defying time and still changing like the patterns in a Kaleidoscope”. Location and Extent India is situated in the southern part of Asia. It covers an area of 3.2 million sq.kms, which occupies 2.5% of the world’s land area. It extends between 8°4’ North and 37°6’ North latitude and between 68°7’ East and 97°25’ East longitude. It stretches from Kashmir in the north to Kanyakumari in the south for 3214 kms and from Gujarat in the west to Arunachal Pradesh 1 2 in the east for 2933 kms. The Tropic of Cancer 23½° North runs across the country and divides it into two equal halves. Obviously, India is the seventh largest country with respect to area. It is four times bigger than Pakistan and three times smaller than USA. Thus India is “neither a pigmy nor a giant among the nations of the world”. Position and Relation India has a predominant position in the Indian Ocean realm. No other country has such a large coast line. The Deccan Peninsula projects itself into the Indian Ocean thus making it possible for India to look both ways - towards Africa and Europe from its western coast and towards South East Asia and the Far East from its eastern coast. The tapering topography of land favours monsoonal climate to promote agricultural activities. India’s position is favourable for trade, commerce and economic activities by connecting India with Europe through Suez Canal and also with China, Japan and Australia through Malaccan strait. India and its boundaries The countries which border India are Bhutan, Nepal and China in the north, Pakistan and Afganistan in the west and Bangladesh and Myanmar in the east. Palk strait separates India and Srilanka in the south. Himalayas along with Hindukush and Karakoram provide a natural boundary in the north. Pakistan in the west and Bangladesh in the east are manmade boundaries demarcated by mutual agreements. The Islands of Andaman and Nicobar and Lakshadweep are the parts of Indian Union situated in Bay of Bengal and Arabian sea respectively. India - a sub continent A continent has varied characteristics of diversed physical features, climatic conditions, natural vegetation, mineral resources, human habitation, cultural norms and ancient ethnic and linguistic groups, etc. All these distinctive characteristics are found in India. Hence we consider India as a subcontinent. 3 4 IST : Indian standard time The Central Meridian of India is 82½° East longitude which runs from north to south through the city of Allahabad. The local time of the meridian is used for calculating the Indian Standard time, which is followed by all the places within the country. It is usually 5½ hours ahead of Greenwich mean time of the world. The 0° meridian passes through Greenwich in England. Each degree of the meridian accounts for four minutes of time and that the difference between Greenwich and Indian standard time is 82½° x 4 = 330 minutes which is 5½ hours. Political Divisions India has been divided into 28 states and 7 union territories on basis of language for administrative convenience. The population, area and the capital cities of the states and union territories are given below. State and Area Population S.No. Union territory Capital (sq.kms) (in million) 1 mi=10 lakhs 1. Andhra Pradesh Hyderabad 275,008 76 2. Arunachal Pradesh Itanagar 83,743 1.1 3. Assam Dispur 78,483 2.7 4. Bihar Patna 99,200 83 5. Chattisgarh Raipur 135,194 21 6. Goa Panaji 3,702 1.3 7. Gujarat Gandhinagar 196,024 50 8. Haryana Chandigarh 44,212 21 9. Himachal Pradesh Shimla 55,673 6 10. Jammu and Kashmir Srinagar, Jammu 222,236 10 11. Jharkhand Ranchi 74,677 26 12. Karnataka Bangalore 191,791 52 13. Kerala Thiruvananthapuram 38,863 31 14. Madhya Pradesh Bhopal 308,252 60 15. Maharashtra Mumbai 307,690 96 16. Manipur Imphal 22,327 2 5 State and Area Population S.No. Union territory Capital (sq.kms) (in million) 1 mi=10 lakhs 17. Meghalaya Shillong 22,429 2 18. Mizoram Aizawl 21,081 0.8 19. Nagaland Kohima 16,579 1 20. Orissa Bhuvaneshwar 155,707 36 21. Punjab Chandigarh 50,362 24 22. Rajasthan Jaipur 343,239 56 23. Sikkim Gangtok 7,096 0.5 24. Tamil Nadu Chennai 130,058 62 25. Tripura Agartala 10,486 3 26. Uttaranchal Dehradun 51,125 8 27. Uttar Pradesh Lucknow 243,286 166 28. West Bengal Kolkata 88,752 80 Union Territories 1. Delhi Delhi 1,483 13 2. Andaman and Port Blair 8,249 0.3 Nicobar Islands 3. Chandigarh Chandigarh 114 0.9 4. Dadra and Nagar Silvassa 491 0.2 Haveli 5. Damman and Diu Daman 112 0.1 6. Lakshwadeep Kavaratti 32 0.06 7. Pondicherry Pondicherry 492 0.9 The above table tells us the capital, area and population ofthe states and union territories. From the given table, onecan find out the statewith the highest population and lowest population. The highly populated state in India is Uttar Pradesh, whereas the sparsely populated state is Mizoram having a population of0.9millions.Consideringthedensityofpopulation-Kerala isdenselypopulated with 820 persons living per sq.km on the contrarySikkim has got lowest density in population of 0.5 million. The density of population is calculated as per the number of persons living per sq.km. Rajasthan is the largest state in area, while 6 Goa is the smallest state. Jharkhand is the latest formed state. Inspite of the implied diversities in natural and cultural regions India has an individualityof its own and this diversityis the basis of India’s self contained economy.