Social Science (087) — AI-generated practice question

Conventional sources of energy are traditional sources used since long, e.g., coal and petroleum.

Non-conventional sources of energy are renewable and environment-friendly alternatives, e.g., solar energy and wind energy.

Key characteristic: Conventional sources are non-renewable fossil fuels that cause environmental pollution. Non-conventional sources are renewable, virtually inexhaustible, and cause little to no pollution. Rising prices of fossil fuels and their potential shortages have increased the need to develop non-conventional sources.

Source: Energy Resources, Conventional and Non-Conventional Sources of Energy, Chapter 5

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• The examiner expects a clear two-part distinction (conventional vs. non-conventional), two examples each, and one differentiating characteristic — all within ~60–90 words.
• Key terms to use: renewable/non-renewable, fossil fuels, environment-friendly/pollution.
• Do not list all examples from the chapter; two each is enough for 3 marks.
• The "key characteristic" sentence is the scoring line — don't omit it.
• Mentioning the motivation (rising prices, environmental problems) adds quality but keep it brief.