Social Science (087) — AI-generated practice question

Hydroelectric Power vs Thermal Power:

| Basis | Hydroelectric Power | Thermal Power |
|---|---|---|
| Resource used | Fast-flowing water (renewable) | Coal, petroleum, natural gas (non-renewable fossil fuels) |
| Example from India | Bhakra Nangal Project / Kopili Hydel Project | Neyveli Thermal Power Station (Tamil Nadu) |

Hydro electricity is generated by fast-flowing water driving hydro turbines. It is a renewable and eco-friendly source. Thermal electricity is generated by burning fossil fuels like coal to drive turbines; these fuels are non-renewable and cause environmental pollution.

Source: Conventional Sources of Energy, Chapter 5

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• Examiners expect a clear contrast on: (1) resource used, (2) renewable vs non-renewable nature, and (3) one example of each — all three are needed for full 3 marks.
• Bhakra Nangal, Damodar Valley Corporation, and Kopili are all valid hydro examples from the textbook. Neyveli (lignite/coal) is the clearest thermal example mentioned.
• A small table plus two explanatory lines is a neat, efficient format for a 3-mark compare question — it shows clarity without over-writing.