Chapter 7(geography) Our Country India Exercises Tick the correct option 1. This is a North West extension of the Himalaya Ans. Karakoram range 2. The peninsular plateau is largely made of this rocks Ans. Igneous 3.The central highlands are bordered by this mountains in the south. Ans. Vindhyas 4.This river forms and estuary while flowing into the Arabian sea. Ans. Both of them 4. This is the oldest part of the Indian subcontinent Ans. The peninsular plateau 5. This is the southernmost tip of Indian mainland. Ans. Cap Camerin State true or false 1. Tropic of Capricorn passes through India. (True) 2. Andaman and Nicobar Island lie in the bay of Bengal (true) 3. India share its boundary with Sri Lanka. (False) 4.The river Brahmaputra rises near the Mansarovar lake in Tibet. (True) 5. The chilka lake is the largest saltwater lake. (True) Fill in the blanks 1. The eastern and the Western ghats meet at____ Ans. Nilgiri hills 2. Highest peak in the Nilgiris is_____ Ans. Doddabetta 3. In the Andaman and Nicobar Island only____Island are inhabited. Ans. 36 4. The____plateau is very rich in mineral deposits. Ans. Dekhen 5.____is the most glaciated part of the world. Ans. Antarctica Short answer questions Q1. What is the longitudinal and latitudinal extent of India? Ans. The longitudinal extent of India is 68°7'E to 97°25'E. The latitudinal extent is 8°4'N to 37°6'N. Q2. Which longitude is used to calculate the Indian standard time? Why Ans The longitude of 82°30'E is the standard meridian of the country and is used to calculate the Indian standard time. Q3. Which countries share their boundaries with India? Ans. India share its boundary with Pakistan, Afghanistan, Bangladesh ,Myanmar ,China ,Nepal and Bhutan. Q4. Name the physiographic division of India Ans. The physiographic division of India are:- *The northern mountain *The northern plains *The great Western desert *The peninsular plateau *The coastal plains *Islands Q5. What is the extent of the Himalayas? Ans.The Himalayas extend from Jammu and Kashmir in the north to Arunachal Pradesh. Q6. What are the three parts of the Western coastal plains? Ans. The three parts of Western coastal plains are:- *The Gujarat coastal towards the west *The Konkan coast towards the north *The Malabar coast towards the south Q7. Why are the northern plains also called the food bowl of India? Ans The northern plains called the food bowl of India because the aluminium deposits make the land fertile. Q8. What is the economic importance of the plateau region? Ans. The plateau is a great economic value because of the rich mineral deposits. Long answer questions Q1. India is a land of geographical diversity comments Ans.India is a vast country with great diversity of physical feature like deserts, evergreen forest ,snowy Himalayas along coast and fertile plains. It is the seventh largest country in the world with the total land mass of 3,287,240sq km.and a coastline of 7,517 km. Q2 Differentiate between the following a. Himachal and himadri range Ans. Himachal range:- It is lower than the himadri range. This range has many hill station like Shimla ,Nainital and Manali. This is zone is suitable to grow fruits and sweet potatoes. The Himadri range:- This is the northernmost range and also the highest. This range is well above the snowline with a height .some of the highest ones are Mount Everest ,Kanchenjunga ,nanga parvat ,Nanda Devi. This zone receives heavy snowfall. b. Eastern and western coastal plains. Ans. The eastern coastal plains:- The eastern coastal plains extend from West Bengal in the north to Tamilnadu in the south and lies between the eastern Ghat and the bay of Bengal. The important feature of this plains is the delta formed by the rivers. The Western coastal plains:- the Western coastal plains extend from Gujarat in the north to Kerala in the south and stretch from the Arabian sea to the Western Ghat. The river Narmada and Tapi flowing into the Arabian sea . c. Eastern Ghat and Western Ghat Ans. The eastern Ghat:- The eastern Ghat run along the eastern coast of peninsular India. Which distributed into smaller hill range by The river like Godavari, Mahanadi ,Krishna and Kaveri. Eastern ghats are older than Western ghats. The Western ghats:- The Western ghats runs along the Western coast open Sula India from the vindhya Satpura range.the various continuous hill range of these ghats are the Nilgiri hills and Anaimudai hills. Q3. What are the three parts of the northern plains? Write a short note on each of them. Ans. The three parts of the northern plains are:- The Indus basin, The Ganga basin and the Brahmaputra basin. The Indus basin:- one of the longest rivers of the Indian subcontinent the Indus river originate near the Mansarovar in Tibet and flows into the Arabian sea.the Indus river plains is a vast expanse of fertile land which is drained by the Indus and the tributaries of Jhelum ,Ravi, Beas and Sutlej. The Ganga basin:- the Ganga basin forms the largest part of the fertile northern plains. It is the most densely populated area in India. The Ganga rises in the Himalayas in the Gangotri glacier. Near the bay of Bengal the Ganga forms are huge delta called the Sundarban. Brahmaputra basin:- The Brahmaputra rises near Mansarovar lake in Tibet where it is known as test Tsangpo.Brahmaputra basin is a narrow plane in the Assam state where the rainfall is heavy. Q4. Why are Himalayas important for the country? Ans.The Himalayas save our country from the cold and dry winds of Central Asia.It also prevent the rain flood in monsoon winds of the Indian Ocean from crossing over to North in countries and causes heavy rainfall in Northern India.almost all the great rivers of India have their source in Himalayan range. That's why the Himalayas is important for the country. Q5 Write a short note on the island region of India. Ans. Andaman and Nicobar Island:- Dan the man and Nicobar Island is a beautiful group of islands of 550 islands forming a change about 800 km long. Only 36 of these islands are inhabited. The Lakshadweep Island:- The Lakshadweep Island consists of 43 coral Islands. Only 10 of the island are inhabited.this islands are coral island which are formed from the accumulated skeleton of that Marine animals .The word Lakshadweep means one lakh Islands. .