Geography: Class 12 (Part 1) — Chapter 4: Primary Activities

Primary activities are directly dependent on the environment, involving the utilization of Earth's resources such as land, water, vegetation, building materials, and minerals.

• Core Sectors: Hunting and gathering, pastoral activities, fishing, forestry, agriculture, mining, and quarrying.
• Workforce: People engaged in primary activities are called red-collar workers due to the outdoor nature of their work.

Gathering is practiced in regions with harsh climatic conditions, requiring low capital investment and extremely low levels of technology. It yields little to no surplus.

• High Latitude Zones: Northern Canada, northern Eurasia, and southern Chile.
• Low Latitude Zones: Amazon Basin, tropical Africa, northern fringe of Australia, and interior Southeast Asia.
• Modern Commercial Gathering: Gatherers collect valuable plants (leaves, barks, medicinal herbs) for market processing. Examples include quinine (from bark), cork, and chicle (milky juice of the zapota tree used to make chewing gum).

A primitive subsistence activity where herders rely on animals for food, clothing, shelter, tools, and transport, moving from place to place based on pasture and water availability.

• Key Regions: The core region extends from the Atlantic shores of North Africa across the Arabian Peninsula to Mongolia and Central China; the tundra region of Eurasia; and small areas in South-west Africa and Madagascar.
• Transhumance: The seasonal migration of herders between low-lying plains and high-mountain pastures. In the Himalayas, communities like the Gujjars, Bakarwals, Gaddis, and Bhotiyas practice this.

Unlike nomadic herding, this is highly organized, capital-intensive, and associated with Western cultures. It is practiced on permanent, fenced ranches.

• Key Regions: New Zealand, Australia, Argentina, Uruguay, and the United States.
• Scientific Focus: Emphasizes breeding, genetic improvement, disease control, and health care of a single animal type (sheep, cattle, goats, or horses).

• Primitive Subsistence Agriculture (Shifting Cultivation): Also known as slash and burn agriculture. Vegetation is cleared by fire, and ashes enrich the soil. Cultivated patches are small, and tools are primitive. Known as Jhuming in North-east India, Milpa in Central America/Mexico, and Ladang in Indonesia/Malaysia.
• Intensive Subsistence Agriculture: Found in densely populated monsoon Asia. Divided into:
  • Wet Paddy Dominated: Characterized by the dominance of rice, small land holdings, intensive land use, family labor, and high yield per unit area but low per-labor productivity.
  • Crops Other Than Paddy: Practiced where paddy is not feasible. Crops include wheat, soyabean, barley, and sorghum (e.g., Northern China, Manchuria, Western India).

• Plantation Agriculture: Introduced by European powers in tropical colonies. Focuses on large estates, high capital investment, scientific methods, single-crop specialization, cheap labor, and efficient transport. Key crops include tea, coffee, cocoa, rubber, cotton, sugarcane, and bananas.
• Extensive Commercial Grain Cultivation: Practiced in semi-arid mid-latitudes. Wheat is the principal crop. Farms are massive and highly mechanized. Characterized by low yield per acre but high yield per person. Regions include the Eurasian Steppes, Canadian and American Prairies, Pampas of Argentina, Velds of South Africa, Australian Downs, and Canterbury Plains of New Zealand.
• Mixed Farming: Found in highly developed regions (NW Europe, Eastern North America, parts of Eurasia). Integrates crop cultivation with animal husbandry. Crop rotation and intercropping maintain soil fertility.
• Dairy Farming: The most advanced and capital-intensive system for rearing milch animals. Highly labor-intensive, requiring constant care. Practiced near urban and industrial centers to supply fresh milk and dairy products. Major regions include North Western Europe, Canada, and South Eastern Australia.
• Mediterranean Agriculture: Highly specialized commercial agriculture. Famous for viticulture (grape cultivation for high-quality wine production), olives, figs, and citrus fruits.
• Market Gardening and Horticulture: Specializes in high-value crops like vegetables, fruits, and flowers for urban markets. Often called truck farming because the distance of farms from markets is governed by what a truck can cover overnight.

• Co-operative Farming: A group of farmers voluntarily pool resources for more efficient and profitable farming. Highly successful in Denmark, the Netherlands, Belgium, Sweden, and Italy.
• Collective Farming (Kolkhoz): Based on social ownership of the means of production and collective labor, introduced in the erstwhile Soviet Union to boost agricultural self-sufficiency.

1. Physical Factors: Size, grade, and mode of occurrence of the mineral deposits.
2. Economic Factors: Demand for the mineral, available technology, capital infrastructure, and labor/transport costs.

• Surface Mining (Open-cast): The easiest and cheapest method for minerals close to the surface. Low overhead costs and rapid output.
• Underground Mining (Shaft Method): Used when ore lies deep below the surface. Requires vertical shafts, underground galleries, and specialized equipment (lifts, ventilation, safety systems). It is highly risky due to hazards like poisonous gases, fires, floods, and cave-ins.