Social Science (087) — CBSE Class 10 board question

Conservation of conventional energy sources is significant because:

1. Limited and non-renewable: Conventional sources like coal, petroleum and natural gas take millions of years to form. Their reserves are finite and getting depleted rapidly due to increasing consumption.

1. Economic and environmental concerns: Rising prices and potential shortages of fossil fuels create uncertainty in energy supply, threatening economic growth. Their excessive use also causes serious environmental pollution.

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

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• The question asks for two reasons, so give exactly two, clearly labelled.
• Key terms to include: non-renewable, finite reserves, economic security, environmental problems — examiners look for these specific ideas from the textbook.
• Avoid writing a long paragraph; two crisp points score full marks in 2-mark questions.