Looking for complete, textbook-verified solutions for SEBA Class 9 Social Science Geography Chapter 3 (Geography of India / ভাৰতবৰ্ষৰ ভূগোল) for the 2026–27 academic session? Access step-by-step solutions to all official textbook exercises—including Very Short Answer (VSA), Short Answer (SA), and Long Answer (LA) questions. Master high-scoring answers covering India’s geographical location, territorial extent, and international land boundaries; the five major physiographic divisions (the Northern Himalayas, the Great Northern Plains, the Peninsular Plateau, the Coastal Plains, and the Islands); comparison between Himalayan and Peninsular river drainage systems; climatic characteristics dominated by the Southwest and Northeast Monsoons; distribution of major soil types across India (Alluvial, Black/Regur, Red, Laterite, Mountain, and Arid soils); natural vegetation categories and forest conservation; and regional economic resources, structured strictly according to the Assam Board (SEBA) examination pattern.
Q.1. Write about the geographical location of India.
Answer: India is located entirely in the Northern and Eastern Hemispheres, occupying the south-central part of the Asian continent. Its main landmass extends between 84’N and 376’N latitudes, and between 687’E and 9725’E longitudes. The Tropic of Cancer (2330’N) passes almost through the middle of the country, dividing it into roughly two halves: the temperate north and the tropical south. India is bounded by the Himalayas in the north, the Arabian Sea in the west, the Bay of Bengal in the east, and the Indian Ocean in the south.
Q.2. What is the total length of the Indian coastline?
Answer: The total length of the Indian coastline, including the mainland and the island groups (Andaman & Nicobar and Lakshadweep), is approximately 7,516.6 km (mainland coastline alone is about 6,100 km).
Q.3. What is the total length of the land boundaries of India?
Answer: The total length of the land frontier/boundary of India is approximately 15,200 km.
Q.4. Write a short note on Indian landforms.
Answer: India displays a great diversity of physical landforms. In the extreme north stand the young fold mountains of the Himalayas, characterized by high peaks, deep valleys, and glaciers. To their south lie the vast, flat, and fertile Northern River Plains formed by the Indus, Ganga, and Brahmaputra river systems. Moving further south lies the ancient, stable triangular tableland of the Deccan/Peninsular Plateau, composed of hard igneous and metamorphic rocks, bounded by the Western and Eastern Ghats. Along the edges of the peninsula run narrow coastal plains, flanked by the Arabian Sea and the Bay of Bengal. In the western part lies the Thar Desert, characterized by sandy expanses and sand dunes. In addition, India has two major offshore island groups: the Andaman & Nicobar Islands and the Lakshadweep Islands.
Q.5. Write down four points of differences between the North and the South Indian rivers.
Answer: 1. Origin: North Indian rivers originate from the high, snow-capped Himalayan ranges, whereas South Indian rivers originate from the Western Ghats and central highland plateaus.
2. Nature of Flow: North Indian rivers are perennial (receive water from both melting snow and monsoon rain), whereas South Indian rivers are non-perennial/seasonal (depend entirely on monsoon rainfall).
3. Course and Drainage: North Indian rivers have long courses, perform extensive erosion and deposition, and form large meanders and floodplains. South Indian rivers have shorter, gentler, and fixed graded courses through rocky terrains with minimal meandering.
4. Navigability and Irrigation: North Indian rivers flow across flat plains, making them highly suitable for navigation and canal irrigation. South Indian rivers flow across rugged, rocky beds creating waterfalls, making them ideal for hydroelectric power generation rather than continuous navigation.
Assam Board Class 9 Geography Chapter 3 Solved Textbook Solutions PDF
Q.6. What are the physiographic divisions of India?
Answer: India is divided into five primary physiographic divisions:
- The Northern Himalayan Mountain Region
- The Northern Plains (Indo-Gangetic-Brahmaputra Plains)
- The Peninsular Plateau (Deccan Plateau)
- The Coastal Plains
- The Islands (Lakshadweep and Andaman & Nicobar Islands)
Q.7. What are the characteristics of the Northern Himalayas Mountain Region of India?
Answer: 1. Geological Age: The Himalayas are young fold mountains formed during the Tertiary period by the collision of the Indian and Eurasian tectonic plates.
2. Parallel Ranges: They consist of three distinct parallel ranges running from west to east: the Himadri (Greater Himalayas), the Himachal (Lesser Himalayas), and the Shiwalik (Outer Himalayas).
3. Relief and Glaciers: They possess the highest peaks in the world (such as Mt. Everest and Kanchenjunga), rugged topography, deep gorges, and extensive snowfields that feed major perennial rivers.
4. Climatic Barrier: They act as an insurmountable barrier protecting northern India from the cold polar winds of Central Asia and blocking monsoon winds to cause heavy rainfall over the Indian sub-continent.
Q.8. Describe the characteristics of the North Indian Plains.
Answer: 1. Formation: Formed by the deposition of alluvium brought down by three major Himalayan river systems—the Indus, the Ganga, and the Brahmaputra—along with their tributaries.
2. Topography and Extent: It is an extremely flat, level plain extending nearly 2,400 km from west to east, with very low gradients and deep alluvial deposits.
3. Soil and Fertility: The region is characterized by fertile alluvial soils classified into Khadar (new alluvium) and Bangar (old alluvium).
4. Economic Importance: Due to abundant water supply, flat terrain, and fertile soil, it is the most agriculturally productive and densely populated region in India.
Q.9. Describe the characteristics of the Deccan Plateau.
Answer: 1. Ancient Origin: The Deccan Plateau is an ancient, stable landmass that formed part of the historic Gondwanaland, composed largely of hard crystalline, igneous, and metamorphic rocks.
2. Relief and Slope: It is an elevated tableland sloping gently from west to east, which is why most of its major rivers (Godavari, Krishna, Mahanadi, Cauvery) flow eastward into the Bay of Bengal.
3. Boundaries: It is bordered by the Western Ghats in the west (continuous and higher) and the Eastern Ghats in the east (discontinuous and dissected).
4. Deccan Trap: The northwestern part consists of the Deccan Trap, formed by ancient volcanic lava flows, which contains rich, moisture-retentive black soil (regur) ideal for cotton cultivation.
Q.10. Mention the characteristics of the Coastal Region of India.
Answer: 1. Two Distinct Belts: The coastal region is divided into the Western Coastal Plain along the Arabian Sea and the Eastern Coastal Plain along the Bay of Bengal.
2. Western Coastal Plain: Narrow, rocky, and fast-draining, comprising the Konkan, Kannad, and Malabar coasts, featuring lagoons, estuaries, and backwaters (Kayals).
3. Eastern Coastal Plain: Much wider, gentler, and level, divided into the Northern Circars and Coromandel Coast, featuring fertile deltas formed by the Mahanadi, Godavari, Krishna, and Cauvery.
4. Economic Role: Crucial for maritime trade, development of major seaports, salt production, and coastal fisheries.
SEBA Class 9 Geography Chapter 3 Solutions
Q.11. Write down the characteristics of the climate of India.
Answer: 1. Monsoon Type: The climate of India is classified broadly as tropical monsoon type, controlled by the seasonal reversal of wind directions.
2. Distinct Seasons: India experiences four well-marked seasons: Winter (December to February), Summer (March to May), South-West Monsoon/Rainy season (June to September), and Retreating Monsoon/Post-monsoon season (October to November).
3. Regional Diversity: Despite a common monsoon rhythm, there are wide regional variations in temperature and precipitation (e.g., extremely arid conditions in western Rajasthan versus extremely wet conditions in Mawsynram, Meghalaya).
4. Dependence on Relief: Rainfall is largely orographic, meaning mountain barriers (Himalayas, Western Ghats) dictate the distribution and intensity of precipitation.
Q.12. Write a note on the impact of monsoons in India.
Answer: The monsoon is the lifeblood of India’s agrarian economy and water security.
- Agricultural Dependency: Over half of India’s net sown area depends directly on monsoon rains for irrigation, determining the output of Kharif crops such as rice, maize, cotton, and pulses.
- Water Resources: Monsoon rains refill dry river basins, natural lakes, reservoirs, and underground aquifers, which sustain drinking water and hydroelectric power generation throughout the year.
- Economic Impact: A good monsoon boosts farm incomes, lowers food inflation, and drives domestic rural demand, while monsoon failure or delay triggers droughts, crop damage, and inflation.
- Disaster Vulnerability: Excessive monsoon rainfall often leads to destructive floods in the river basins of the Ganga, Brahmaputra, and coastal zones, causing loss of life, crops, and infrastructure.
Q.13. Outline the pattern of rainfall distribution in India.
Answer: Rainfall distribution in India is highly uneven, governed primarily by relief and wind direction:
- Areas of Heavy Rainfall (Over 200 cm): The Western Ghats, northeastern states (Assam, Meghalaya, Arunachal Pradesh), and parts of the sub-Himalayan belt. Mawsynram and Cherrapunji receive the highest rainfall in the world.
- Areas of Moderate Rainfall (100 to 200 cm): Eastern coastal regions, parts of the middle and lower Ganga plains, West Bengal, Odisha, and eastern Madhya Pradesh.
- Areas of Low Rainfall (50 to 100 cm): The upper Ganga plain, parts of Punjab, Haryana, eastern Rajasthan, and the rain-shadow interior of the Deccan Plateau.
- Areas of Scanty Rainfall (Less than 50 cm): Western Rajasthan (Thar Desert), northern Gujarat (Kutch), and the cold desert plateau of Ladakh.
Q.14. Write about the types of vegetation of India.
Answer: India’s natural vegetation is classified into five major groups:
- Tropical Evergreen Forests: Dense, multi-layered rain forests found in regions with over 200 cm annual rainfall (Western Ghats, North-East India, Andaman Islands).
- Tropical Deciduous (Monsoon) Forests: The most widespread forest type, found where rainfall is between 70 cm and 200 cm; trees shed leaves during the dry summer season.
- Tropical Thorn Forests and Scrubs: Found in arid and semi-arid regions with less than 70 cm rainfall (northwest India, interior Deccan).
- Montane (Mountain) Forests: Found across varying altitudes in the Himalayas, transitioning from temperate deciduous to coniferous, and finally alpine pastures.
- Mangrove (Tidal) Forests: Found along coastal areas, tidal estuaries, and river deltas influenced by sea tides (Sundarbans).
Q.15. What are the characteristics of the Evergreen vegetation of India?
Answer: 1. Climatic Requirements: They thrive in warm, humid regions that receive more than 200 cm of annual rainfall with a short dry season.
2. Appearance: Since different species shed leaves at different times of the year, the forest remains green throughout the year, earning the name “evergreen.”
3. Dense Canopy and Height: Trees grow tall, often reaching heights of 60 meters or more, forming a dense canopy that prevents sunlight from reaching the ground.
4. Important Species: Major commercial tree species include Ebony, Mahogany, Rosewood, Rubber, and Cinchona.
Class 9 Social Science Geography Chapter 3 Question Answer Assam Board
Q.16. Write about the characteristics of the Mountain Vegetation of India.
Answer: 1. Altitudinal Zonation: In mountainous regions, a decrease in temperature with increasing altitude causes a succession of natural vegetation zones, from tropical to alpine types.
2. Wet Temperate Zone (1,000–2,000 m): Consists of evergreen broad-leaf trees such as oaks and chestnuts.
3. Coniferous Zone (1,500–3,000 m): Dominated by softwood coniferous trees with needle-shaped leaves, including Pine, Deodar, Silver Fir, Spruce, and Cedar.
4. Alpine Zone (Above 3,600 m): Coniferous forests give way to alpine vegetation, including Silver fir, junipers, birches, and rhododendrons, transitioning finally to alpine grasslands and mosses near the snowline.
Q.17. What is the total population of India at present?
Answer: According to the official Census of India (2011), the total population of India was approximately 1.21 billion (121.08 crore). In recent demographic estimates, India’s population has crossed 1.4 billion (140+ crore), ranking as the most populous country in the world.
Q.18. What are the different types of migration?
Answer: Migration can be classified based on movement boundaries and streams:
- Internal Migration: Movement of people within the national boundaries of a country (e.g., from one state or district to another). It includes four major streams:
- Rural to Rural (R-R)
- Rural to Urban (R-U)
- Urban to Urban (U-U)
- Urban to Rural (U-R)
- International (External) Migration: Movement of people across international borders, comprising:
- Emigration: Movement of people out of a country to settle abroad.
- Immigration: Movement of people into a country from other nations.
- Duration-based Migration: Permanent, semi-permanent, seasonal, or daily/commuter migration.
Q.19. What are the impacts of migration on India?
Answer: 1. Demographic Impact: Redistribution of population leads to severe population pressure and high density in destination urban centers, while causing depopulation and aging populations in sending rural zones.
2. Economic Impact: Remittances sent by migrant workers provide vital income support to rural families; however, rapid urban influx drives the growth of informal labor and underemployment.
3. Social and Cultural Impact: Promotes social integration, exposure to new skills, and cultural exchange, but can also cause alienation and family fragmentation.
4. Environmental and Civic Strain: Overcrowding in cities strains urban infrastructure, causing housing shortages, traffic congestion, waste management crises, and the proliferation of slums.
Q.20. Write down the main features of the Indian economy.
Answer: 1. Developing Mixed Economy: Both public and private sectors coexist and participate in production and economic planning.
2. Dominance of the Agrarian Sector: Agriculture remains the largest employer of the workforce, even though its percentage share of national GDP has declined over time.
3. Growing Service Sector: The tertiary (service) sector—including IT, banking, communications, and transport—has grown to become the single largest contributor to the country’s GDP.
4. Demographic Dividend: India possesses a large, young working-age population, providing a favorable dependency ratio.
5. Income Disparity and Poverty: Despite rapid GDP growth, the economy continues to face challenges such as income inequality, poverty, underemployment, and regional economic imbalances.
Geography of India Textual Questions SEBA 2026-27
Q.21. What are the Union Territories of India?
Answer: India has 8 Union Territories administered directly by the Central Government:
- Andaman and Nicobar Islands
- Chandigarh
- Dadra and Nagar Haveli and Daman and Diu
- Delhi (National Capital Territory of Delhi)
- Jammu and Kashmir
- Ladakh
- Lakshadweep
- Puducherry
Q.22. How many states are there in India at present? Name them.
Answer: There are currently 28 states in India. They are:
- Andhra Pradesh
- Arunachal Pradesh
- Assam
- Bihar
- Chhattisgarh
- Goa
- Gujarat
- Haryana
- Himachal Pradesh
- Jharkhand
- Karnataka
- Kerala
- Madhya Pradesh
- Maharashtra
- Manipur
- Meghalaya
- Mizoram
- Nagaland
- Odisha
- Punjab
- Rajasthan
- Sikkim
- Tamil Nadu
- Telangana
- Tripura
- Uttar Pradesh
- Uttarakhand
- West Bengal
Q.23. Name the latest state formed in India. Write its area and population.
Answer: Name of the State: Telangana (formed on June 2, 2014, bifurcated from Andhra Pradesh).
Area: Approximately 112,077 sq. km.
Population: Approximately 35.19 million (3.52 crore, as per the 2011 Census).
🇮🇳 Class 9 Social Science Solutions Notice: This page features the complete SEBA Class 9 Social Science (Geography Section) Chapter 3: Geography of India Official Textual Questions and Answers updated for the 2026–27 academic session. Formatted according to the official Assam Board evaluation marking scheme, every core topic—from India’s geographical coordinates and borders, the morphological breakdown of the Himalayas and Peninsular Plateau, comparative analysis of Himalayan vs. Peninsular drainage basins, to Monsoon climate mechanisms and soil varieties—is presented with point-wise clarity, structured classifications, and map-aligned answers to help you secure full marks in your school assessments, half-yearly, and final annual examinations.
💡 Master SEBA Class 9 Geography Textual Solutions:
- Having difficulty framing a comprehensive 5-mark answer explaining the distinct characteristics of the five physiographic divisions of India, contrasting the perennial Himalayan rivers with seasonal Peninsular rivers, or detailing the origin, course, and socio-economic importance of the Indian Monsoon? Leave your query in the comments section below!
- Bookmark this page for quick revision of physiographic features, state boundaries, major river origins, and soil distribution tables before your upcoming unit evaluations, half-yearly exams, and annual examinations.
- Share this link with your classmates and WhatsApp study groups to make Class 9 Social Science regional Indian geography preparation structured, clear, and high-scoring!