Geographical Diversity of India — Class 7 Social Science
Exploring Society Part 1 · Chapter 1
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- Space weighted by chapter size
- Charts from the book's own data
- Traps corrected
- Space weighted by chapter size
- Charts from the book's own data
- Traps corrected
- Space weighted by chapter size
- Charts from the book's own data
- Traps corrected
Chapter summary
Key ideas & terms
- Indian Subcontinent
- The region formed by India and its neighbours — Pakistan, Bangladesh, Nepal, Bhutan, Sri Lanka and Myanmar — set apart by mountains and seas.
- Peninsula
- A piece of land surrounded by water on three sides; the southern plateau is a peninsular plateau bordered by the Arabian Sea, Bay of Bengal and Indian Ocean.
- Plateau
- A landform that rises above the surrounding land with a fairly flat top and often steep sides, such as the Deccan Plateau.
- Delta
- A triangular or fan-shaped landform built up by sediment a river deposits where it meets a sea or lake, as with the Godavari and Sundarbans deltas.
- Cold desert
- A dry, rugged region like Ladakh where rainfall is scarce and winter temperatures can fall below –30°C, unlike a hot sandy desert.
- Archipelago
- A group or chain of islands, such as Lakshadweep in the Arabian Sea or the Andaman and Nicobar Islands in the Bay of Bengal.
Extra questions & answers
How were the Himalayas formed?
India broke away from the ancient landmass Gondwana, drifted north, and collided with Eurasia about 50 million years ago; the land between them crumpled upward like a wrinkled carpet, and the range is still rising.
Why are the Himalayas called the 'Water Tower of Asia'?
Their melting summer snows feed major rivers like the Ganga, Indus and Brahmaputra, supplying water for drinking, farming and industry to hundreds of millions of people.
What are the three main ranges of the Himalayas?
The Himadri or Greater Himalayas (highest, snow-covered), the Himachal or Lower Himalayas (milder, with hill stations), and the Shivalik or Outer Himalayas (lowest foothills).
Why is Ladakh called a cold desert?
It receives very little rainfall and has rugged, rocky terrain, yet its winters are extremely cold, dropping below –30°C, so it is a desert defined by dryness rather than heat.
Why are the Gangetic Plains so important?
Rivers from the Himalayas enrich the soil with minerals, making the plains highly fertile for agriculture, supporting transport networks, and allowing a large proportion of India's population to live there.
How have people adapted to life in the Thar Desert?
They suit their food, clothing and lifestyle to harsh heat and water scarcity, scour utensils with sand, reuse water, and build rainwater-harvesting structures like taanka or kunds.
What role do the Aravalli Hills play?
Among the world's oldest mountains, they act as a natural barrier that stops the Thar Desert from spreading eastward and are rich in minerals such as marble, zinc and copper.
What separates the Deccan Plateau, and which rivers cross it?
It lies between the taller Western Ghats and the lower Eastern Ghats; rivers like the Godavari, Krishna and Kaveri flow across it from west to east into the Bay of Bengal.
Which are India's two major island groups?
Lakshadweep, a coral archipelago in the Arabian Sea, and the Andaman and Nicobar Islands, a group of volcanic islands in the Bay of Bengal.
Why is India sometimes called a 'mini-continent'?
Because within one country it contains an enormous range of landforms — snowy mountains, hot deserts, fertile plains, plateaus, long coasts and islands — yet remains a single united nation.
The Big Questions
1. What are some key geographical features of India?
Some key geographical features of India are the Himalayan mountain range in the north, the fertile Gangetic Plains (Northern Plains) formed by the Ganga, Indus and Brahmaputra rivers, the Thar Desert in the west, the Peninsular Plateau bordered by the Western and Eastern Ghats, the long coastlines along the Arabian Sea and Bay of Bengal, and the island groups of Lakshadweep and Andaman and Nicobar. These features together show India's great diversity in landforms, climate and natural resources.
2. How does India’s geographical diversity affect our lives?
India's geographical diversity affects our lives in many ways. Mountains like the Himalayas give us rivers, water, climate protection and places for pilgrimage. Fertile plains support farming and house most of the population. Deserts and plateaus provide minerals and shape local food, clothes and houses. Coasts support fishing, ports and trade, while different regions create varied cultures, festivals, languages and occupations, but also connect us as one country.
LET’S EXPLORE
Look at the map of India at the end of this book. What are you able to observe?
On the physical map I can see that India has many different colours and landforms. The north is white and dark brown showing the high snow-covered Himalayas, the northern plains are green showing low fertile land, central and southern India is yellow and light brown showing the Peninsular Plateau, and the western side has a yellow patch for the Thar Desert. The blue around shows the seas and ocean.
Recall your lesson on different types of landforms—mountains, plains and plateaus. Which landforms can you identify on the map?
I can identify mountains in the Himalayan region in the north and the Ghats along the coasts, the vast Northern Plains of the Ganga and Indus, the Peninsular Plateau in the centre and south, the Thar Desert in the west, and coastal plains and islands along the seas.
What do the different colours on the map mean? (Hint: The legend on the map shows the heights of each area.)
The different colours show the altitude or height above sea level. Generally, dark brown and white show very high mountains, light brown shows plateaus and hills, green shows low plains near sea level, and blue shows water bodies. The legend helps us read the height range for each colour, for example plains are
LET’S EXPLORE
Do you recall your lesson on latitudes and longitudes? Look at the map. Can you read, approximately, the latitude and longitude where India lies?
Yes. India lies mainly in the Northern and Eastern Hemispheres. Approximately, its mainland extends from about
Identify the above features on India’s physical map.
On the physical map I can trace the Himalayan wall in the north, the Thar Desert and Arabian Sea in the west, the Indian Ocean in the south and the Bay of Bengal in the east. These natural boundaries separate the Indian Subcontinent from the rest of Asia.
LET’S REMEMBER
Can you name the highest mountain in the world?
The highest mountain in the world is Mount Everest, which is part of the Himalayas. It is about
LET’S EXPLORE
Can you locate the names of the states in the different parts of the Himalayas? Take the help of both the physical and political maps for this exercise.
Yes. Using the maps, the Himalayas cover Jammu and Kashmir, Ladakh, Himachal Pradesh and Uttarakhand in the west, Sikkim, northern West Bengal, Arunachal Pradesh, Assam hills, Nagaland, Manipur, Mizoram and Meghalaya in the east. The Himadri has few settlements, the Himachal has hill stations like Shimla and Darjeeling, and the Shivalik foothills touch Punjab and Haryana.
LET’S EXPLORE
Notice the concentration of lighting in the plains. What could be the reason for this concentration?
The satellite image shows many lights in the Gangetic Plains because a large proportion of India's population lives there. The plains are flat, fertile, well-watered and well-connected by roads and railways, so there are many cities, towns and farms that need electricity at night.
DON’T MISS OUT
Most rivers are named after goddesses—Ganga, Yamuna, Kaveri, etc. The name of Brahmaputra, however, means ‘the son of Brahma’. This river gets bigger during summer instead of drying up! Can you guess why?
The Brahmaputra gets bigger in summer because its main source is snow and glacier melt in the Himalayas and heavy monsoon rain in the northeast. In summer the snow melts faster and the monsoon brings lots of rain, so the river swells even though many other rivers shrink in hot season.
LET’S EXPLORE
What is the shape of a sand dune?
A sand dune is usually a mound or low hill of sand with a gentle slope on the windward side and a steeper slope on the other side. Many dunes look like a crescent or a long ridge.
While mountains are made of rock and their shape is fixed, why do you think sand dunes also have a similar shape, even though they are made of sand?
Sand dunes get their shape from the wind, just as mountains get folds from tectonic pressure. Wind pushes and deposits sand in the same way over and over, forming hill-like ridges. Because wind direction is often steady, dunes keep a similar hilly shape, but unlike rock mountains they can slowly shift and change.
LET’S EXPLORE
Let’s go back to the map. Trace your path slowly from the Thar Desert towards the east. Do you see the Aravalli Hills?
Yes. Moving east from the Thar Desert, I can see the Aravalli Hills running in a northeast to southwest direction. They are the old, low hills that separate the desert from the plains and extend through Rajasthan towards Delhi and Haryana.
LET’S EXPLORE
Look at the political map in the textbook and identify the states that the range spans. Did you see Delhi, Rajasthan, Haryana and Gujarat?
The Aravalli Range spans mainly Rajasthan, Haryana, Gujarat and Delhi. It starts near Gujarat in the southwest, runs through Rajasthan and Haryana, and reaches near Delhi in the northeast.
LET’S EXPLORE
Look at the physical map of India given at the end of the book. Notice the direction of the flow of the rivers.
On the map most rivers of the Peninsular Plateau like the Godavari, Krishna, Kaveri and Mahanadi flow from west to east and drain into the Bay of Bengal. Only a few rivers like the Narmada and Tapti flow westwards into the Arabian Sea. In the north, the Ganga and Brahmaputra also flow generally eastwards to the Bay of Bengal.
LET’S EXPLORE
Tribal communities are largely spread over the states of Jharkhand, West Bengal, Odisha, Assam, Madhya Pradesh, Chhattisgarh, Maharashtra, Telangana, and Gujarat. Examine the physical and political maps at the end of this book to locate the states and connect them to their location on the physical map.
On the political map these states lie across central and eastern India. When linked to the physical map, they mostly lie on the Peninsular Plateau, its forested highlands and the Eastern Ghats region, and in the northeast hills. This shows that tribal communities often live in plateau, forest and hill areas.
LET’S EXPLORE
Look at the physical map of India in your school atlas or wall map and find the names of five rivers that flow into the Bay of Bengal. Find out India’s coastal states and discuss the difference between the western and eastern coastal plains.
Five rivers flowing into the Bay of Bengal are the Ganga, Brahmaputra, Mahanadi, Godavari and Krishna. Coastal states include Gujarat, Maharashtra, Goa, Karnataka and Kerala on the west coast, and West Bengal, Odisha, Andhra Pradesh and Tamil Nadu on the east coast. The western coastal plain is narrow with estuaries and is close to the Western Ghats, while the eastern coastal plain is wider with large fertile deltas and lagoons like Chilika Lake.
Do you know what it is called when these rivers split into multiple streams near the coast? Discuss with your teacher in class to find out!
When a river splits into many streams before meeting the sea it forms a delta. The streams are called distributaries. At the mouth, the river deposits sediment and creates a triangular, fan-shaped fertile area, as seen in the Godavari, Krishna, Kaveri and Ganga-Brahmaputra deltas.
Questions and activities
1. What, in your opinion, are two important geographical features of India? Why do you think they are important?
In my opinion two important features are the Himalayas and the Gangetic Plains. The Himalayas protect India from cold northern winds, bring rain, feed rivers like the Ganga and Brahmaputra, and are culturally sacred. The Gangetic Plains are very fertile, support farming for millions, allow road and rail transport, and house a large part of India's population and major cities.
2. What do you think India might have looked like if the Himalayas did not exist? Write a short note or sketch a drawing to express your imagination.
If the Himalayas did not exist, cold winds from Central Asia would make north India much colder in winter, the monsoon would bring less rain, and rivers like the Ganga and Brahmaputra would not be snow-fed and might be seasonal. There would be no natural northern wall, so invasions and cultural exchange would have been different, and the sacred mountains, monasteries and hill stations would not exist. India would be more flat and dry.
3. India has been called a ‘mini-continent’. Based on what you’ve read, why do you think this is so?
India is called a mini-continent because it has almost every type of landform found on a continent within one country — snow mountains, cold desert, hot desert, vast fertile plains, ancient plateau, thick forests, long coasts, islands and heavy rainfall areas. This variety creates different climates, soils, plants, animals and ways of life, just like a whole continent.
4. Follow one of India’s big rivers from where it starts to where it meets the ocean. What are the different ways in which people might utilise this river along its journey? Discuss in groups in your class.
Take the Ganga: it starts at Gaumukh from the Gangotri Glacier. Near the start, people use it for pilgrimage and trekking. In the Himalayan valleys it gives water for drinking and generates hydroelectric power. In the plains it waters farms, provides water for homes and factories, supports fishing, and is used for transport and trade. Near its delta in the Sundarbans it forms fertile land for rice, mangroves for protection, and finally meets the Bay of Bengal where ports and fisheries are important.
5. Why is the southern part of India referred to as a peninsular plateau?
The southern part is called a peninsular plateau because it is a plateau — a high flat land with steep sides — and it is a peninsula, meaning it is surrounded by water on three sides. It is surrounded by the Arabian Sea in the west, the Bay of Bengal in the east and the Indian Ocean in the south, and is bordered by the Western and Eastern Ghats.
6. Which UNESCO Heritage Site mentioned in this chapter did you find more interesting? Write a short paragraph to describe what about it is interesting.
I found the Great Himalayan National Park most interesting because it is a World Heritage Site that protects a wide variety of Himalayan plants and animals like the Himalayan monal and snow leopard. Villagers and the government work together to protect its biodiversity. The Sundarbans is also fascinating for its mangroves and Royal Bengal Tigers. Both show how geography helps protect nature and culture.
7. Look at the two maps of India, physical as well as political, given at the end of this book. Identify the place you are at now. Which physical feature of India would you use to describe its location?
I am at my school in my city. To describe its location physically, I would say which major landform it lies on. For example, if I live in Delhi I would say I am on the Gangetic Plains near the Yamuna River, if I live in Bhopal I am on the Peninsular Plateau, if I live in Jaipur I am near the Thar Desert and Aravallis, and if I live in Kochi I am on the western coastal plain. I can find my state on the political map and then see its landform on the physical map.
8. Food preservation techniques differ from place to place across India. They are adapted to local conditions. Do a class project. Gather different methods of preserving food. Hint: Drying vegetables when they are in season for use during the off-season.
For the project, collect methods from different regions: In Ladakh people dry vegetables and yak cheese in the cold dry air, in the Thar Desert people dry ker-sangri and pickle mango and lemon with oil and salt, in coastal areas people dry fish and make pickles, in the Himalayas people make rhododendron sherbet and fermented foods, and in the plains people make papad, badi, murabba and sun-dried tomatoes. Each method suits the local climate, water availability and need to store food for months.
9. Despite having such different regions (mountains, deserts, plains, coasts), India remains one country. How do you think our geography has helped unite people?
Geography unites us because rivers, roads, railways and sea routes connect all regions for travel and trade. People from different areas exchange food, language, art and festivals. Rivers that start in the mountains water the plains and reach the sea, linking all. The Himalayas and seas give a shared natural boundary and identity, and shared resources and challenges make people cooperate, creating a feeling of one nation in diversity.