Social Science (087) — AI-generated practice question

Primary → Secondary → Tertiary: The Logic of Sectoral Shift

Stage 1 (Primary dominates): At early stages of development, most people depend on agriculture and natural resources for survival. Farming absorbs the bulk of the workforce and generates most output.

Primary → Secondary transition: As farming methods improve, agricultural productivity rises — the same food is produced by fewer workers. Surplus labour is released. Simultaneously, rising incomes create demand for manufactured goods. Factories emerge, absorbing the surplus farm workers. The secondary sector gradually surpasses the primary in both output and employment.

Secondary → Tertiary transition: As industry expands, it generates growing demand for support services — transport, banking, storage, trade. Rising incomes also push people to spend on education, healthcare, tourism, and entertainment. New technology (IT, communication) further multiplies service opportunities. The tertiary sector then overtakes the secondary and becomes the largest.

In short, each sector's growth creates the conditions — surplus labour, rising incomes, new demands — that allow the next sector to dominate.

Source: Historical Change in Sectors; Rising Importance of the Tertiary Sector in Production — Chapter 2

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• The examiner expects causal reasoning, not just a description of the sequence. Show why each handover happens (productivity surplus → labour shift; income rise → new demand).
• Three key mechanisms to mention: agricultural surplus labour, rising incomes creating new demand, and industry/agriculture generating demand for services.
• The textbook explicitly states the primary→secondary shift happened due to "new methods of manufacturing" and people being "forced" off farms; secondary→tertiary due to basic service needs, development of other sectors, rising incomes, and IT-based services.
• At 5 marks, ~110–120 words with a clear logical flow is ideal. Avoid bullet points alone — use brief paragraphs or a mix.