Human Geography

Equatorial regions face significant challenges to development primarily due to their characteristic hot, wet climate and its ecological ramifications. Human health is adversely affected by excessive heat and high humidity, leading to physical and mental handicaps, reduced vigour, and susceptibility to conditions like sunstroke and diseases such as malaria and yellow fever. The same climate that promotes rapid plant growth also encourages the proliferation of insect pests and bacteria, which not only spread diseases but also cause injury to crops, plaguing both humans and animals. The dense and luxuriant jungle itself presents a major obstacle, being difficult and costly to clear for infrastructure development like roads and railways, and requiring continuous, high-cost maintenance against rapid regrowth of tall grass (lalang) and thick undergrowth. Furthermore, remote areas within these regions often lack modern communication lines, relying mainly on rivers as natural highways. Tropical soils, contrary to popular belief, rapidly deteriorate once the natural vegetative cover is removed and humus is depleted, as torrential downpours wash out essential nutrients, leading to erosion and impoverishment. Commercial activities such as lumbering are difficult due to the multi-species nature of forests, the absence of frozen surfaces for logging, and the non-floating nature of many tropical hardwoods. Livestock farming is also severely constrained by the lack of nutritious meadow grass and the presence of deadly diseases in animals, such as ngana caused by tsetse flies in Africa.

Deserts, despite their inhospitable environment characterized by water scarcity and challenges to livelihood, have always been inhabited by various groups of people. These inhabitants have developed diverse strategies to survive and thrive, broadly categorized into five types: primitive hunters and collectors, nomadic herdsmen, caravan traders, settled cultivators, and mining settlers. Primitive hunters and collectors, such as the Bushmen of the Kalahari and the Bindibu of Australia, are nomadic, do not practice agriculture, and do not domesticate animals. They subsist by hunting local fauna and gathering wild plants, employing unique methods for water collection. Nomadic herdsmen, like the Bedouin of Arabia, Tuaregs of the Sahara, and Gobi Mongols, rely on livestock for their sustenance and wealth, trading animal products for other necessities. Caravan traders were historically crucial, using camels, known as 'ships of the desert,' to transport goods across vast distances for trade, although their role has diminished with modern transport. Settled cultivators establish life around sources of irrigation such as oases, rivers, or dams, utilizing canal networks to grow crops like date palms, maize, barley, and cotton. Major river systems like the Nile, Indus, Tigris-Euphrates, and Colorado support large agricultural populations in desert regions. Lastly, the discovery of mineral wealth, including gold, diamonds, copper, sodium nitrate, silver, and uranium, has led to the establishment of mining settlements. More recently, the vast oil reserves in regions like the Saharan and Arabian Deserts have profoundly transformed the landscape and economy, fostering rapid development and modern infrastructure.

The world's population is unevenly distributed — broadly, 90 per cent of the world population lives in about 10 per cent of its land area. The 10 most populous countries contribute about 60 per cent of the world's population; of these, 6 are located in Asia. **Factors Influencing Population Distribution:** Geographical Factors: - Availability of water: River valleys are among the most densely populated areas; people prefer easy access to fresh water for drinking, agriculture, and industries - Landforms: People prefer flat plains and gentle slopes for crop production and infrastructure; mountainous areas hinder transport and tend to be sparsely populated. The Ganga plains are among the most densely populated areas; Himalayan mountain zones are scarcely populated - Climate: Extreme climates (hot/cold deserts) are uncomfortable; areas with comfortable climate attract more population. Mediterranean regions were inhabited from early periods due to pleasant climate - Soils: Fertile loamy soils support intensive agriculture and denser settlement Economic Factors: - Minerals: Areas with mineral deposits attract industries and skilled workers (Katanga-Zambia copper belt) - Urbanisation: Cities offer better employment, education, medical facilities, and transport — driving rural-urban migration - Industrialisation: Industrial belts attract workers across occupations (Kobe-Osaka region, Japan) **Population Growth:** - Natural growth = Births – Deaths - Actual growth = Births – Deaths + In-migration – Out-migration - Crude Birth Rate (CBR) = live births per 1,000 population per year - Crude Death Rate (CDR) = deaths per 1,000 population per year The world population has been doubling progressively faster. It took more than a million years to reach 1 billion; then from 5 billion to 6 billion took only 12 years. The world population at the start of the 21st century was over 6 billion. **Demographic Transition Theory:** Describes population change as society progresses from rural-agrarian-illiterate to urban-industrial-literate: - Stage 1: High birth rate, high death rate — slow growth (pre-industrial societies) - Stage 2: High birth rate, declining death rate — rapid growth/population explosion (developing countries in transition) - Stage 3: Low birth rate, low death rate — stable or slow growth (developed countries)

The concept of human development was introduced by Dr Mahbub-ul-Haq (Pakistani economist) in 1990. He described human development as "development that enlarges people's choices and improves their lives." People are central to all development under this concept. The United Nations Development Programme (UNDP) has published the Human Development Report annually since 1990. **Growth vs Development:** - Growth is quantitative and value-neutral (can be positive or negative) - Development is qualitative change — always positive improvement in quality of life **Four Pillars of Human Development:** 1. **Equity**: Equal access to opportunities regardless of gender, race, income, or caste 2. **Sustainability**: Continuity in availability of opportunities; each generation must have the same opportunities as the previous one 3. **Productivity**: Human labour productivity; people are the real wealth of nations; investments in health and education increase productivity 4. **Empowerment**: Power to make choices through increasing freedom and capability; good governance essential **Approaches to Human Development:** - Income Approach: Higher income = higher human development (oldest approach) - Welfare Approach: Government expenditure on education, health, social services; people are passive recipients - Basic Needs Approach (proposed by ILO): Six basic needs — health, education, food, water supply, sanitation, housing - Capability Approach (Amartya Sen): Building human capabilities in health, education, and access to resources **Measuring HDI:** The Human Development Index ranks countries based on performance in three key areas: 1. **Health**: Life expectancy at birth (higher = better chance of long, healthy life) 2. **Education**: Adult literacy rate + gross enrolment ratio 3. **Access to Resources**: Purchasing power (in US dollars) Each dimension has a weight of 1/3. HDI score ranges from 0 to 1; closer to 1 = higher human development. The Human Poverty Index measures the shortfall in human development (non-income measure) — includes: probability of not surviving till age 40, adult illiteracy rate, lack of access to clean water, and number of underweight children. **India's HDI:** India was ranked 127 among 172 countries with a composite HDI value of 0.602 (UNDP 2005) — classified as medium human development. Kerala has the highest state-level HDI (0.638), followed by Punjab, Tamil Nadu, Maharashtra, and Haryana. Bihar has the lowest (0.367).

Population composition analyses the attributes of a population — age, sex, literacy, occupation, and place of residence. These characteristics reveal the social and economic development of a region. **Sex Ratio:** The ratio between the number of women and men in a population. - Global average: 990 females per 1,000 males - Highest sex ratio: Latvia (1,187 females per 1,000 males) - Lowest sex ratio: UAE (468 females per 1,000 males) — due to selective male migration for work - India calculates sex ratio as females per 1,000 males - Asia generally has a low sex ratio (countries: China, India, Saudi Arabia, Pakistan) - Greater part of Europe (including Russia) has more females than males — due to better status of women and male-dominated out-migration in the past A low sex ratio may indicate gender discrimination, female foeticide, female infanticide, or lower socio-economic status of women. More women in the population does not necessarily mean better status — it could reflect male out-migration. **Age Structure:** - Age group 15–59: Working age population - Large proportion in 15–59 = large workforce (demographic dividend potential) - Large proportion above 60 = ageing population; requires more health care - High proportion of young population = high birth rate, youthful population **Population Pyramid:** - Expanding (triangular, wide base): Developing countries — high birth rate, high death rate, young population (e.g., Nigeria) - Constrictive (narrow base): Declining population — low birth rate (e.g., Germany) - Stationary (near-uniform): Stable population — birth rate roughly equals death rate **Occupational Structure:** - Primary activities: Agriculture, forestry, fishing, mining - Secondary activities: Manufacturing - Tertiary activities: Transport, communication, services - Quaternary activities: Research and development, information - In developed economies, majority of workers are in tertiary/quaternary sectors - In developing economies, majority are in primary sector **Rural-Urban Composition:** - Rural areas: People engaged in primary activities; smaller settlements; intimate social relations - Urban areas: Engaged in non-primary activities; larger and compact; complex social relations - India's Census 1991 definition of urban: Minimum 5,000 persons, at least 75% male workers in non-agricultural pursuits, population density at least 400 persons/sq km

A human settlement is a cluster of dwellings where human beings live. Settlements range from hamlets to metropolitan cities and vary in size, economic character, social structure, and technology. **Rural vs Urban Settlements:** - Rural settlements derive their economic needs from land-based primary activities (agriculture, fishing, forestry) - Urban settlements depend on secondary (manufacturing) and tertiary (services) activities - Cities act as nodes of economic growth and provide goods/services to surrounding hinterlands - Rural people are less mobile; social relations are intimate. Urban life is complex and fast; social relations are formal **Types of Rural Settlements in India:** Factors determining type: physical features (terrain, altitude, climate, water availability), cultural and ethnic factors (caste, religion), and security factors. 1. **Clustered (Nucleated/Agglomerated)**: Compact, closely built-up area; general living area separate from surrounding farms. Common in fertile alluvial plains (North India) and north-eastern states. Also found in Rajasthan (water scarcity necessitates compact settlement) and Bundelkhand (security reasons). Geometric shapes: rectangular, radial, linear. 2. **Semi-Clustered (Fragmented)**: One or more sections of village settle slightly away from main cluster — often due to social segregation. Land-owning dominant community occupies central area; lower social strata settle on outer flanks. Common in Gujarat plains and parts of Rajasthan. 3. **Hamleted**: Settlement fragmented into several units with a common name. Units called panna, para, palli, nagla, dhani in different regions. Motivated by social and ethnic factors. Common in middle and lower Ganga plain, Chhattisgarh, lower Himalayan valleys. 4. **Dispersed (Isolated)**: Isolated huts or small hamlets in remote areas, jungles, or small hills. Caused by extremely fragmented terrain. Found in Meghalaya, Uttaranchal, Himachal Pradesh, and Kerala. **Urban Settlements in India:** Evolution: Ancient → Medieval → Modern - Ancient towns (2,000+ years): Religious and cultural centres — Varanasi, Prayag (Allahabad), Pataliputra (Patna), Madurai - Medieval towns (~100 towns): Fort towns as headquarters of kingdoms — Delhi, Hyderabad, Jaipur, Lucknow, Agra, Nagpur - Modern towns: British-developed ports (Surat, Daman, Goa, Pondicherry), then consolidated around Mumbai (Bombay), Chennai (Madras), Kolkata (Calcutta) Census of India 1991 definition of urban settlement: Minimum 5,000 persons + at least 75% male workers in non-agricultural pursuits + population density at least 400 persons per sq km. **World Rural Settlements:** - Compact/Nucleated: Houses close together along river valleys and fertile plains; closely knit communities - Water supply is the most important factor in siting rural settlements - Wet point settlements: Near water bodies; Dry point settlements: Avoiding flood risk

Transport establishes the network of links and nodes connecting regions for the movement of goods, people, and ideas. Communication enables exchange of information. Together they integrate economic activity over space and are essential to any developed economy. **Modes of Transport:** **Land Transport:** - Roadways: Most common for short distances; flexible; door-to-door service; India has one of the largest road networks. National Highways (NHs) connect state capitals, major cities, and ports. - Railways: Critical for long-distance freight and passenger movement; transformed economies after Industrial Revolution; Trans-Siberian Railway (9,332 km) is the longest in the world. **Water Transport:** - Inland waterways: Rivers, canals, lakes. Dependent on navigability — width, depth, continuous flow. Very heavy cargo (coal, cement, timber, metallic ores) can be transported cheaply. Lost importance in India due to competition from railways, irrigation diversions, and poor maintenance. - Important inland waterways: Rhine (700 km navigable, from Rotterdam to Basel), Danube (Eastern Europe), Volga (Russia, 11,200 km), Great Lakes-St. Lawrence Seaway (North America), Mississippi-Ohio (USA). - Ocean routes: Busiest routes are the North Atlantic, Mediterranean-Indian Ocean route, and North Pacific routes. **Air Transport:** - Fastest but most expensive - No place more than 35 hours away in the world - More than 250 commercial airlines offer regular services - USA accounts for 60% of world's airways - Dense air networks: Eastern USA, Western Europe, Southeast Asia - Supersonic aircraft cover London-New York in 3.5 hours - Essential for inaccessible areas (Himalayas, remote Arctic regions) - Major nodal points: New York, London, Paris, Amsterdam, Frankfurt, Rome, Moscow, Karachi, New Delhi, Mumbai, Bangkok, Singapore, Tokyo **Pipelines:** Used for transporting liquids and gases (water, petroleum, natural gas) continuously. Big Inch pipeline (USA) carries petroleum from Gulf of Mexico to North-eastern States. About 17% of all freight per tonne-km in USA is via pipelines. Proposed Iran-India (via Pakistan) pipeline would be the world's longest. New Zealand: milk supplied through pipelines from farms to factories. **Communication:** - Telegraph was instrumental in colonisation of American West - Telephone: AT&T had monopoly in USA until deregulation; telephone critical for urbanisation of America - Optic Fiber Cables (OFC): First major breakthrough — allow large quantities of data, rapid, secure, virtually error-free - Internet: Largest electronic network, connecting ~1,000 million people in 100+ countries - Satellite Communication: Since 1970s; connects remote areas; pioneered by USA and USSR **Rhine Waterway:** Most heavily used inland waterway in the world. Navigable for 700 km (Rotterdam to Basel). Ocean-going vessels can reach Cologne. Ruhr coalfield region. Over 20,000 ocean-going ships and 2,00,000 inland vessels use it annually. Connects Switzerland, Germany, France, Belgium, Netherlands.

The Hausa are a group of settled cultivators residing in the savannalands of the Bauchi Plateau in northern Nigeria. Numbering almost six million, they have established organized agricultural communities over centuries, demonstrating a more advanced civilization compared to many other African peoples mentioned in the context. Unlike tribes practicing shifting cultivation, the Hausa clear a piece of land and utilize it for several years. When soil fertility diminishes, they move to a new field, allowing the old plot to lie fallow for natural restoration. This practice, combined with crop rotation between different fields throughout the year, is a characteristic technique found in advanced agricultural societies. Their farming year is intrinsically linked to the rainfall season, with seeds sown in late April, crops growing rapidly during the May-September rainy season, and harvesting occurring in September. While primarily crop cultivators, they also keep domesticated animals like cattle, goats, and poultry, which serve as subsidiary sources of milk and meat, with animal manure being used for fertilizing fields.

The savanna lands hold significant agricultural potential, which is increasingly vital due to world population pressure and the need for enhanced food production. These regions, characterized by over 760 mm (30 inches) of annual rainfall and an absence of severe cold, are capable of supporting a diverse range of tropical crops. Pioneer settlements in areas like central Africa, northern Australia, and eastern Brazil have demonstrated the immense capacity of savannas for plantation agriculture, including crops such as cotton, sugar cane, coffee, oil palm, groundnuts, and various tropical fruits. Countries like Kenya, Uganda, Tanzania, and Malawi have undertaken large-scale production of cotton and sisal hemp, crops well-suited to savanna conditions. Furthermore, commercial cultivation of groundnuts, oil palm, and cocoa has expanded into West African savannas, with ongoing efforts to introduce drought-resistant varieties to boost foreign earnings. Cooler highland areas within savannas have also successfully raised temperate crops, indicating further versatility. However, farming in savanna regions is fraught with natural hazards. Rainfall unreliability often leads to prolonged and severe droughts, making crop failures disastrous without adequate irrigation, improved crop varieties, and scientific farming techniques tailored for tropical grasslands. The distinct wet and dry seasons of the Sudan Climate contribute to rapid soil fertility deterioration. During the rainy season, torrential downpours cause leaching, washing away critical plant nutrients like nitrates, phosphates, and potash. Conversely, intense heating and evaporation during the dry season deplete soil moisture. This often results in poor lateritic soils across many savanna areas, which are incapable of supporting good crops unless properly conserved through regular manuring, weeding, and careful maintenance. Cattle rearing, a natural fit for savanna grasslands, also faces hurdles. Native zebu cattle are typically bony, yield limited meat or milk, and are highly susceptible to tropical diseases, such as ngana (sleeping sickness) carried by the tsetse fly. The export of beef or milk from these regions has not been substantial. To improve the cattle industry, introducing temperate breeds (like English Shorthorn, Friesian, or Guernsey) to cross with tropical zebu is considered necessary, along with enhancing grass quality, developing better communication networks, and implementing scientific cattle breeding and disease control. Additionally, traditional attitudes of native herdsmen, such as the Masai, who value cattle for prestige rather than commercial slaughter, pose significant challenges to the modernization and commercialization of the cattle industry.

Manufacturing industry transforms raw materials into finished goods. The Industrial Revolution began in 18th century Britain — coal for steam power and iron/steel smelting were the twin pillars. Industries are classified into 8 major groups: 1. Iron and steel industry (basis of all ferrous metallurgy) 2. Fuel and power industry 3. Mineral extracting industry (non-ferrous metals) 4. Metallurgical industry (machinery, engineering, automobiles, shipbuilding) 5. Chemicals industry 6. Textiles industry 7. Food processing industry 8. Consumer goods industries **Factors of industrial location:** 1. **Raw materials**: Proximity reduces transport costs; weight-losing industries locate near materials 2. **Power/Fuel**: Coal and hydropower historically determined location; now electricity more flexible 3. **Labour**: Cheap, skilled or abundant labour attracts industries (e.g. SE Asia textiles) 4. **Transport**: Railways, ports, roads enable assembly of inputs and distribution of outputs 5. **Capital**: Investment availability determines scale and technology 6. **Markets**: Consumer demand; industries gravitate toward large population centres 7. **Government policy**: Industrial estates, subsidies, protectionism 8. **Historical/inertia**: Once established, industries remain even when original advantages gone 9. **Climate**: Affects worker productivity; cotton spinning needs humid air (Lancashire) **Iron and Steel Industry:** - Requires: Iron ore + Coking coal + Limestone (flux) + Ferro-alloys (Mn, Ni, Cr) - Originally located on coalfields; now at coastal/waterside locations (import ore) - Major regions: Ruhr (Germany — imports iron from Sweden, uses local coal); Pennsylvania/Pittsburgh (USA); Sheffield (UK); Donbas/Urals (USSR); Manchuria (China); Jamshedpur (India — Tata Steel) - Ruhr imports iron ore from Sweden; has local coal and limestone **Major industrial regions of the world:** - Western Europe: Rhine-Ruhr, British Midlands, NW England - North America: Great Lakes, NE USA megalopolis (Boston–Washington corridor) - Eastern Europe: Donbas, Ural industrial region - Asia: China (Manchuria, Shanghai), Japan (Tokyo-Osaka belt), India (Damodar Valley) **Textile industries:** - Cotton textiles: Lancashire (UK), New England (USA), Ahmedabad/Mumbai (India), Japan, China - Wool: Yorkshire (UK), Australia (wool production → UK for weaving) - Silk: Japan, China (traditional centres); synthetic silk now widespread - Jute: Bengal/Bangladesh (Ganga delta raw material)

Eskimos are an indigenous group inhabiting the tundra regions of Greenland, northern Canada, and Alaska, numbering less than 28,000 today. Traditionally, they led a semi-nomadic existence, primarily as hunters, fishers, and food-gatherers, adapting to the harsh polar environment. Their nomadic lifestyle was dictated by seasonal climate changes, involving living in compact igloos during winter and pitching portable tents of skins by streams for summer hunting. Their diet relied on fish, seals, walruses, polar bears, and caribou. In recent decades, their way of life has undergone significant transformation due to contact with Europeans. While some Polar Eskimos in areas like Thule in north-west Greenland still maintain a traditional, uncertain lifestyle, many others have adopted more settled patterns. Modern changes include the establishment of permanent wooden houses with contemporary facilities in coastal villages, the replacement of traditional kayaks with speed-boats, and the use of rifles instead of harpoons for hunting. Furthermore, economic activities have evolved, with fur-bearing animals being reared commercially and fishing becoming commercialized. In more accessible parts of Canada and Alaska, schools have been established to equip Eskimo children with skills for integration into modern society.

Fossil fuels (coal, oil, natural gas) are non-renewable 'robber industries' — once extracted, cannot be replaced. Coal powered the Industrial Revolution; oil now dominates modern energy. Alternatives include hydro-electricity, tidal power, nuclear, and solar energy. **Coal Types (descending order of quality/carbon content):** 1. **Anthracite**: Best coal; <5% of world output; hardest; highest hydrocarbon; practically smokeless; used for steam-raising, domestic heating 2. **Bituminous coal**: Most abundant; three subtypes: - Steam coal: Hard, burns with great heat, used in ships ('bunker coal') and locomotives - Coking coal: Burned in closed ovens to produce coke for blast furnaces (iron smelting) - Gas coal: High moisture/volatile matter; produces coal gas and chemicals 3. **Lignite/Brown coal**: Lowest grade; high moisture/ash; smoky; half world's reserves in Germany; used for thermal electricity, domestic heating 4. **Peat**: Initial stage of coal formation; vegetative matter; bogs of Ireland and Scotland **World coal producers (at time of writing):** USA (24%), USSR (20%), China (20%), Poland (7.5%), UK (5%), W Germany (3.7%). **China's coal regions:** Shanxi (Shansi) and Shaanxi (Shensi) in N China — called 'second Pennsylvania'; also Sichuan, Hunan, Yunnan, Shandong, Manchuria. **India's coal:** Mainly Damodar Basin (Raniganj). **Petroleum:** - Organic origin; occurs in pore spaces of sedimentary rocks; usually in dome-shaped anticline structures (oil trap) - Products: petrol/gasoline, diesel, kerosene, aviation fuel, lubricants, bitumen, petrochemicals - Major oil producers: Middle East (Saudi Arabia, Kuwait, Iran, Iraq), USA, Russia, Venezuela, Nigeria, Libya - Key world oil basins: Persian Gulf (largest reserves), Siberia, North Sea, Gulf of Mexico, Lake Maracaibo (Venezuela) **Natural Gas:** Often associated with petroleum; clean-burning; major reserves in Russia, Middle East, North America. **Hydro-electricity (HEP):** Renewable; requires reliable river with steep gradient; major projects: Three Gorges Dam (China), Itaipu (Brazil-Paraguay), Aswan High Dam (Egypt), Bhakra Nangal (India). **Nuclear power:** High energy density; uranium as fuel; France, USA, Japan major users.

Agriculture provides livelihoods for more than three-quarters of the human race. Key factors determining agriculture: 1. **Climate** (most important): Rainfall (amount, distribution, timing), temperature, frost-free period. E.g. rice requires at least 1,520mm annual rainfall; cotton needs ~24°C and 200 frost-free days. 2. **Relief**: Lowlands suited for most crops; altitude excludes many (rubber yield falls above 760m); tea and coffee prefer elevated ground (Assam Hills, Brazilian Highlands). 3. **Soil**: Loamy soils most versatile; sandy soils suit groundnuts (aeration); clayey soils suit rice (moisture retention). Humus → fertility. Volcanic soils, alluvial soils, loess soils = most fertile. 4. **Biotic factors**: Pests, diseases, weeds. Boll weevil (US Cotton Belt), Coffee Blight (Sri Lanka 1878 → switch to tea), Phytophthora (Irish Potato Famine 1845–48), Phylloxera (European vineyards 1870s), Tsetse fly (cattle in Africa). 5. **Economic factors**: Land values, transport, markets, capital, technology, trade policies. **Major farming types:** - **Subsistence farming**: Growing for own consumption; still dominant in developing world - **Commercial farming/Plantation**: Large-scale, single crop for export; e.g. rubber (Malaysia), tea (India, Sri Lanka), coffee (Brazil), sugar (Caribbean) - **Shifting cultivation (Slash and burn)**: Tropical subsistence; plot cleared, cultivated, abandoned; e.g. ladang (Malaysia), chitemene (Africa) - **Nomadic herding**: Moving with animals; arid/semi-arid regions - **Mixed farming**: Crops + livestock together; common in W Europe - **Dairy farming**: Intensive livestock for milk; near urban markets - **Market gardening/Horticulture**: High-value vegetables/fruits near cities **Key crop facts:** - **Rice**: Minimum 1,520mm rainfall; clayey soils; Monsoon Asia produces 90%+ of world rice - **Wheat**: Cooler temperatures; 25–75cm rainfall; Prairies (USA/Canada), Russian Steppes, Punjab (India/Pakistan) - **Cotton**: 24°C; 200 frost-free days; deep alluvial soil; US Cotton Belt, Nile Valley, Deccan - **Tea**: Slopes above 300m; heavy rainfall but good drainage; Assam, Darjeeling (India), Sri Lanka, Kenya - **Coffee**: Originally Ethiopia; Brazil = largest producer (Highlands); Colombia - **Rubber**: Tropical climate; >2,000mm rainfall; Malaysia, Indonesia (original plantations replaced by SE Asia) - **Jute**: Likes swampy deltas; Ganga-Brahmaputra delta (Bangladesh/W Bengal) - **Sugarcane**: Tropical lowlands; Cuba, Brazil, India - **Dates**: Lowland arid environment; Middle East, N Africa

The Masai are a nomadic tribe primarily known as cattle pastoralists, historically inhabiting the central highlands of East Africa, specifically Kenya, Tanzania, and Uganda. Their traditional lifestyle is deeply intertwined with their herds of zebu cattle, which possess humps and long horns. Despite once numbering around 50,000 in the mid-19th century, their population has significantly decreased due to tribal conflicts, epidemics, and natural deaths. They are now largely restricted to designated Masai reserves in Kenya and Tanzania, having lost their ancestral grazing lands in the Kenyan Highlands to plantation agriculture by white settlers and later to African farmers. The Masai's economic and social structure revolves around their cattle, which are regarded with immense respect and affection. These animals are never deliberately slaughtered for food or sale; beef is consumed only when an animal dies naturally. Furthermore, zebu cattle are not used as draught animals but are exclusively kept for their milk and blood. Women perform milking twice daily, yielding a small amount of milk (typically under one litre), which is consumed fresh or sour, as cheese-making is not practiced. Blood, obtained by puncturing a swollen vein with a special arrow-head, is also a part of their diet. Cattle serve as a primary symbol of wealth, dictate social status (the largest herds signify the richest man), and are used in bride payments. When a family patriarch dies, the livestock is divided among his sons. Adapting to the savanna environment, the Masai build temporary circular huts from sticks, bushes, and mud. They protect their cattle at night by enclosing them within strong fences to ward off wild animals. During periods of drought, they migrate their herds from the less nutritious grass of the lower slopes to the higher, cooler plateau regions where pastures are better. While the Masai obtain some agricultural products like millet, bananas, groundnuts, and vegetables from neighboring agricultural tribes such as the Kikuyu, they generally prioritize the quantity of their cattle over their quality and are reluctant to sell them, which impacts the profitable utilization of their vast land.

The Eurasian tundra is home to several indigenous nomadic tribes, including the Lapps, Samoyeds, Yakuts, Koryaks, and Chuckchi. These communities traditionally lead a semi-nomadic existence, relying on their herds of reindeer for sustenance and wandering across the available pastures. The Lapps are primarily found in northern Finland and Scandinavia, while the Samoyeds inhabit Siberia, specifically from the Ural Mountains and the Yenisey basin. The Yakuts reside in the Lena basin, and the Koryaks and Chuckchi are located in north-eastern Asia. Over recent decades, the way of life for many of these tribes has evolved, with an increasing number adopting a more settled existence. In regions such as the U.S.S.R., large-scale farms have been established for the commercial raising of reindeer and the breeding of fur-bearing animals, introducing significant changes to traditional economic activities. Additionally, governments actively support the advancement of these Arctic inhabitants, and new settlements have emerged in the region, partly due to the discovery of various minerals.