GEO 101 Lecture Notes - Lecture 10: Subsistence Agriculture, Tertiary Sector Of The Economy, Secondary Sector Of The Economy
7 Nov 2016
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Document Summary
Primary sector agriculture, mining, fishing, forestry. Secondary sector manufacturers that process, transform and assemble raw materials, and also fabricate them to produce consumer goods, construction. Tertiary sector provision of goods and services to people in exchange for payment. Agriculture is deliberate modification of earth"s surface through cultivation of plants and rearing of animals to obtain sustenance or economic growth. Agriculture origins and regions: origins of agriculture. Invention of agriculture: location of agricultural hearths. Hunters and gatherers: before the invention of agriculture, all humans had to survive through hunting, fishing and gathering plants, today, about 250 000 people (0. 005%) still survive through hunting and gathering. Isolated locations of interior africa, australia, arctic, and south america. How agriculture was invented: first by accident , later by deliberate attempt . Agriculture in less developed countries: shifting cultivation. Future of shifting cultivation: pastoral nomadism. Intensive subsistence with wet rice not dominant: plantation farming.
