CBSE Class 12 Geography
Chapters: 12
1. Human Geography
Human geography: nature and scope
- Human Geography: Nature and Scope – Human geography studies how people and nature shape each other in different places. Long ago, nature controlled people (naturalisation of humans, or environmental determinism). With technology, people started to change nature (humanisation of nature, or possibilism). Neo-determinism says: change nature, but stop at its limits. Over time the subject moved through many approaches, from exploration to post-modernism, and today it has many fields such as social, urban, political and economic geography.
2. People
The world population · Human development
- The Demographic Structure of Indian Society – Demography is the study of population: its size, how it grows, and who is in it (age, sex, place). Malthus said population grows faster than food, so hunger checks it. The theory of demographic transition says societies move from high birth and death rates, through a population explosion when deaths fall first, to low birth and death rates. Key measures are birth rate, death rate, growth rate, fertility rate, infant and maternal mortality, life expectancy, sex ratio and dependency ratio. India has a young population, which can be a demographic dividend if the young get jobs and skills. India's falling child sex ratio is a warning sign. Villages and cities are linked by migration, trade and media, yet divided by jobs, services and income. India's population policy moved from family planning (1952) through forced sterilisation in the Emergency to the National Population Policy 2000, which stresses health, education and choice.
- The World Population: Distribution, Density and Growth – People are not spread evenly on Earth. Most live on fertile plains near water; few live in deserts, high mountains or icy lands. Density tells how many people live on each square km. Geographical, economic and social factors explain the pattern. The world grew slowly for thousands of years and then very fast after 1800. Population changes through births, deaths and migration. The demographic transition theory shows how birth and death rates fall as a society moves from rural farming to urban industry. Countries use family planning and health care to control growth.
- Human Development: Meaning, Pillars, Approaches and HDI – Growth means getting bigger; development means getting better. Human development means widening people's choices so they can live long, healthy, educated lives with a decent income. It rests on four pillars: equity, sustainability, productivity and empowerment. Four approaches look at it differently: income, welfare, basic needs and capability. The Human Development Index (HDI) scores countries from 0 to 1 using health, education and income. The Human Poverty Index looked at what is missing, and Bhutan uses Gross National Happiness. Countries are compared in very high, high, medium and low groups.
3. Human Activities
Primary activities · Secondary activities · Tertiary and quaternary activities · Transport and communication · International trade
- Primary Activities: Gathering, Herding, Farming and Mining – Primary activities take things straight from nature: gathering and hunting, herding animals, farming, fishing, forestry and mining. Gathering is the oldest. Herding can be nomadic (moving with animals) or commercial livestock ranching. Farming ranges from subsistence types (shifting and intensive) to commercial types (plantation, extensive grain, mixed, dairy, Mediterranean and market gardening), and also cooperative and collective farming. Mining depends on physical factors like size and grade of ore and economic factors like demand, technology and transport. It is done by surface (open-cast) or underground (shaft) methods.
- Secondary Activities: Manufacturing and Industries – Secondary activities add value to raw materials by changing them into useful goods. This is manufacturing. Modern manufacturing uses specialised jobs, machines, new technology and a clear organisation, and is found in only a few regions. Industries are located by weighing market, raw material, labour, power, transport, government policy and the benefit of clustering together. They are classified by size (cottage, small, large), raw material (agro, mineral, chemical, forest, animal), output (basic, consumer) and ownership (public, private, joint). High-tech industries depend on research and skilled workers and cluster in technopolis areas.
- Tertiary and Quaternary Activities – Tertiary activities give services instead of making goods: trade, transport, communication and many services from a barber to a lawyer. As countries develop, more people work in services. Tourism is one of the largest tertiary activities, pulled by climate, landscape, history, culture and good facilities. India has become a popular place for medical tourism because of skilled doctors and lower costs. Quaternary activities deal with knowledge and information; quinary activities are the highest-level decision-making jobs. Outsourcing moves such work across countries. The digital divide is the gap between people who have access to modern digital technology and those who do not.
- Transport and Communication in the World – Transport moves people and goods; communication moves messages. Roads are best for short, door-to-door trips, and highways join far cities. Transcontinental railways cross whole continents, like the Trans-Siberian. Sea routes carry most world trade, and ship canals like Suez and Panama save long detours. Inland waterways such as the Rhine and the St Lawrence Seaway carry heavy goods deep inland. Air transport is fastest but costly, pipelines carry oil and gas nonstop, and satellites and the internet move information across the world in seconds.
- International Trade: Basis, Balance, WTO and Ports – International trade is the exchange of goods and services between countries. It began with barter, grew along routes like the Silk Route, passed through the cruel slave trade and colonial trade, and expanded with industry. Countries trade because they differ in resources, population, development, foreign investment and transport. Balance of trade compares exports and imports. Trade can be bilateral or multilateral; free trade lowers barriers, while dumping sells goods abroad below cost. The WTO sets global rules, regional blocs group neighbours, and ports of many types act as gateways.
4. Map Work: World
World map work
- Class 12 History Map Work: Finding Places Through Time – The map question in Class 12 History carries 5 marks. You get an outline map and must mark and name places. The places come from the themes you study: Harappan cities, the 16 mahajanapadas, Ashoka's inscriptions, Buddhist sites, Vijayanagara and Mughal places, and centres of 1857 and the national movement. The trick is simple. Remember each place by its river, its coast or its neighbour. Group places by age. Then marking becomes quick and sure.
- India Map Work for Class 12 Geography (People and Economy) – In Class 12 map work you locate and label places from the India People and Economy book on an outline map of India: crop areas, mines, oil fields, industrial centres, ports and airports. Learn a key of symbols, learn each place with a clue (near which coast, river or plateau), and practise marking it neatly with its name. Only an official outline map is used; we never draw or argue about borders.
- World Map Work (Class 12): Farming Regions, Railway Terminals, Ports, Airports and Waterways – In Class 12 world map work you mark human-geography features on an outline map. Gathering happens in thick forests and cold lands; nomadic herding in dry lands; commercial ranching, extensive grain farming and mixed farming in temperate grasslands and developed plains. Four transcontinental railways cross continents from coast to coast. Big sea ports sit on coasts; big airports can be anywhere. The Suez and Panama canals are short cuts between oceans; the Rhine and the St Lawrence carry ships deep inland.
5. Population
Population: distribution, density, growth and composition
- Population of India: Distribution, Density, Growth and Composition – India had about 121 crore people in 2011, around one sixth of the world. People crowd into fertile plains and thin out in hills, deserts and forests; average density was 382 per sq km. Growth passed through four phases: stagnant (1901–21), steady (1921–51), explosion (1951–81) and slowing (after 1981). Growth differs from state to state. About 69% live in villages. India has many languages (four families) and many religions. About 40% of people are workers, and more than half of them depend on farming. The sex ratio is 943, so campaigns such as Beti Bachao Beti Padhao work for girls.
6. Human Settlements
Human settlements
- Human Settlements: Rural and Urban Types, Evolution of Towns, Urbanisation and Smart Cities – A settlement is any group of homes where people live, from a single hut to a big city. Rural settlements depend on farming and other primary work; urban settlements depend on industry, trade and services. Villages can be clustered, semi-clustered, hamleted or dispersed. Indian towns grew in three periods: ancient, medieval and modern. The urban share rose from 11% in 1901 to 31% in 2011. Towns are grouped by their main job: administrative, industrial, transport, commercial, mining, garrison, educational, religious and tourist. The Smart Cities Mission (2015) aims to make 100 cities cleaner, safer and easier to live in.
7. Resources and Development
Land resources and agriculture · Water resources · Mineral and energy resources · Planning and sustainable development
- Land Resources and Agriculture in India (Class 12) – Land in India is used in nine ways; net sown area is the biggest at about 46%. Forest and non-farm land grew over time, while barren land and pastures shrank. Village commons (pasture, pond, wood-lot) are common property resources. India grows crops in three seasons: kharif, rabi and zaid. Farms are dryland or wetland, and irrigation can be protective or productive. Rice, wheat, pulses, oilseeds, cotton, jute, sugarcane, tea and coffee are the major crops. The Green Revolution raised output but also brought problems like falling water tables, salty soil, small farms and debt.
- Water Resources of India (Class 12 Geography) – India has about 4% of the world's water but 16% of its people. Usable water each year is about 1,122 km³: 690 km³ from the surface and 432 km³ from the ground. Coastal lagoons and backwaters, as in Kerala, support fishing, paddy and tourism. Farming uses most water, about 89% of surface and 92% of groundwater. Sewage, factory waste and farm chemicals spoil water quality. We conserve water by using less, treating and reusing waste water, rainwater harvesting and watershed management (like Haryali, Neeru-Meeru and Arvary Pani Sansad).
- Mineral and Energy Resources of India (Class 12) – Minerals are natural substances with a fixed make-up. Most of India's minerals lie in old plateau rocks, in three belts: the north-eastern plateau, the south-western plateau and the north-western belt. Metallic minerals include iron ore, manganese, bauxite and copper; mica is a non-metallic mineral. Coal, petroleum and natural gas are conventional energy that will run out. Nuclear, solar, wind, tidal, geothermal and bio-energy are non-conventional and cleaner. Because minerals are non-renewable, we must use less, recycle scrap and use substitutes.
- Planning and Sustainable Development in India (Class 12) – Planning means choosing what to do first to reach goals for the good of all. Sectoral planning focuses on one sector; regional planning helps backward regions catch up. Target area programmes like the Hill Area Development Programme and the Drought Prone Area Programme help special regions. Sustainable development means growth that meets today's needs without harming future generations, balancing economy, society and environment. Two case studies: the Bharmaur tribal area of the Gaddi people in Himachal Pradesh, and the Indira Gandhi Canal command area in the Thar desert.
8. Transport, Communication and International Trade
Transport and communication in India · International trade of India
- Transport and Communication in India (Class 12) – Transport moves people and goods; communication moves messages. India has a huge road network: National Highways, State Highways, district roads, rural roads and border roads. Indian Railways uses broad, metre and narrow gauges. Pipelines carry oil, gas and water cheaply and nonstop. Inland waterways (like NW-1 on the Ganga) and ocean routes are the cheapest for bulky goods. Air transport is the fastest and reaches far areas. Communication is personal (post, telephone, internet) or mass (radio, TV, newspapers, films), helped by satellites like INSAT and IRS.
- Transport and Communication in the World – Transport moves people and goods; communication moves messages. Roads are best for short, door-to-door trips, and highways join far cities. Transcontinental railways cross whole continents, like the Trans-Siberian. Sea routes carry most world trade, and ship canals like Suez and Panama save long detours. Inland waterways such as the Rhine and the St Lawrence Seaway carry heavy goods deep inland. Air transport is fastest but costly, pipelines carry oil and gas nonstop, and satellites and the internet move information across the world in seconds.
- International Trade of India (Class 12 Geography) – International trade is the exchange of goods and services between countries. India imports more than it exports, so it has a trade deficit. The make-up (composition) of trade has changed: farm goods' share in exports fell, while manufactured goods, petroleum products and engineering goods rose. Crude oil is the biggest import, followed by electronics, machinery, gold and chemicals. The direction of trade has shifted towards Asia; top partners include the USA, China, the UAE and others. About 95% of trade by volume passes through sea ports, which serve a hinterland behind them. Airports handle light, costly and perishable goods.
9. Geographical Perspective on Selected Issues and Problems
Selected issues and problems
- Geographical Perspective on Selected Issues and Problems (Class 12) – Pollution means harmful things added to air, water, land or sound. Air pollution comes from burning fuel, factories and vehicles; water pollution from sewage, industry and farm chemicals; land pollution from garbage and chemicals; noise pollution from traffic and loudspeakers. Cities make huge amounts of solid waste that should be sorted, recycled and safely disposed. People move from villages to cities because of push factors (poverty, no work) and pull factors (jobs, services); many end up in slums with poor housing and services. Land degradation from erosion, waterlogging, salinity, mining and overgrazing can be healed, as shown by watershed work in Jhabua.
10. Map Work: India
India map work
- Class 12 History Map Work: Finding Places Through Time – The map question in Class 12 History carries 5 marks. You get an outline map and must mark and name places. The places come from the themes you study: Harappan cities, the 16 mahajanapadas, Ashoka's inscriptions, Buddhist sites, Vijayanagara and Mughal places, and centres of 1857 and the national movement. The trick is simple. Remember each place by its river, its coast or its neighbour. Group places by age. Then marking becomes quick and sure.
- India Map Work for Class 12 Geography (People and Economy) – In Class 12 map work you locate and label places from the India People and Economy book on an outline map of India: crop areas, mines, oil fields, industrial centres, ports and airports. Learn a key of symbols, learn each place with a clue (near which coast, river or plateau), and practise marking it neatly with its name. Only an official outline map is used; we never draw or argue about borders.
- World Map Work (Class 12): Farming Regions, Railway Terminals, Ports, Airports and Waterways – In Class 12 world map work you mark human-geography features on an outline map. Gathering happens in thick forests and cold lands; nomadic herding in dry lands; commercial ranching, extensive grain farming and mixed farming in temperate grasslands and developed plains. Four transcontinental railways cross continents from coast to coast. Big sea ports sit on coasts; big airports can be anywhere. The Suez and Panama canals are short cuts between oceans; the Rhine and the St Lawrence carry ships deep inland.
11. Practical Work in Geography Part II
Data: source and compilation · Data processing · Graphical representation of data · Spatial information technology
- Data: Source and Compilation (Class 12 Geography Practical) – Data are numbers or facts about places and people. We get them from primary sources (our own field work), secondary sources (published by others) and unpublished records. Raw data are messy, so we tabulate them in a clear table, group them into equal classes and count the frequency of each class. A frequency polygon joins the midpoints of the classes to show the shape of the data.
- Data Processing: Mean, Median and Mode (Class 12 Geography Practical) – Data processing turns a long list of numbers into a few useful numbers. The three measures of central tendency are the mean (share equally: total ÷ count), the median (the middle value when data are in order) and the mode (the value that comes most often). Each has a method for ungrouped and grouped data. When data are balanced the three are close; when one or two values are very large or small, the median is the fairer average.
- Graphical Representation of Data (Class 12 Geography Practical) – Graphs, diagrams and thematic maps turn tables into pictures, so patterns jump out. Line graphs and polygraphs show change over time. Bar diagrams (simple, multiple, compound) compare items. A pie diagram shows parts of a whole using angles. Flow maps show movement, with arrow width to scale. Thematic maps show one theme over an area: dot maps (1 dot = a fixed number), choropleth maps (areas shaded by value) and isopleth maps (lines joining equal values).
- Spatial Information Technology: GIS (Class 12 Geography Practical) – A Geographical Information System (GIS) is a computer system that stores, links, analyses and shows data about places. It keeps the world in layers. It needs hardware, software, data, people and methods. Spatial data come in raster (grid of cells) and vector (points, lines, polygons) formats. Data are entered by digitising, scanning, GPS or satellite images and linked to attribute tables. Overlay combines layers to find where conditions meet; buffer draws a zone of fixed distance around a feature.
12. Formative-only topics
Population composition, settlements and migration
- Migration – Migration is the movement of people from one place to another to live there, for some time or for good. The place left is the origin; the place reached is the destination. People move because of push factors (problems at home) and pull factors (attractions elsewhere), but obstacles like cost, distance and laws stop some. Migration can be internal or international, temporary or permanent, voluntary or forced, and it changes both the origin and the destination.