Write a short note (about 80 words) on the advantages of solar energy over fossil fuels. Give two advantages.
Answer
Solar energy is a renewable source that does not deplete natural reserves. Unlike fossil fuels, its utilisation produces no greenhouse gases, thereby reducing air pollution and mitigating climate change. Moreover, after the initial installation, the operating cost is minimal because sunlight is free, leading to long‑term savings for households and industries. These two advantages—environmental cleanliness and economic sustainability—make solar power preferable to fossil‑fuel based electricity.
Step-by-step solution
- State that solar energy is renewable and does not exhaust natural resources.
- Explain that its use emits no greenhouse gases, highlighting the environmental benefit.
- Mention the low operating cost after installation because sunlight is free.
- Summarise the two advantages: environmental cleanliness and economic sustainability.
Common mistake: Mixing advantages with disadvantages or providing fewer/more than the required 80 words.
Concept tested: Advantages of renewable energy (solar) over fossil fuels
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