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PPT - Minerals and Energy Resources
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FAQs on PPT - Minerals and Energy Resources
| 1. What's the difference between metallic minerals and non-metallic minerals in CBSE Class 10? |  |
Ans. Metallic minerals contain metals that can be extracted profitably and conduct electricity, such as iron ore and bauxite. Non-metallic minerals lack metals, lack conductivity, and include limestone, gypsum, and mica. Both are essential resources, but metallic minerals form the backbone of industries requiring metal production and alloy manufacturing.
| 2. How do conventional energy resources differ from renewable energy sources for Class 10 exams? | |
Ans. Conventional energy resources like coal, petroleum, and natural gas are finite fossil fuels that deplete with use and produce greenhouse gases. Renewable energy sources-solar, wind, hydro, and geothermal-regenerate naturally and cause minimal environmental damage. Understanding this distinction is crucial for CBSE board exams and understanding India's energy security challenges.
| 3. Why is strip mining considered more damaging than underground mining? | |
Ans. Strip mining removes entire surface layers to access minerals, causing severe land degradation, soil erosion, and habitat destruction across vast areas. Underground mining creates localized subsidence but preserves surface ecosystems and agricultural land. Both methods pose environmental trade-offs, but strip mining's visible impact makes ecological restoration significantly more difficult and costly.
| 4. What are the main reasons India depends heavily on coal as an energy resource? | |
Ans. India possesses abundant coal reserves concentrated in regions like Odisha and Chhattisgarh, making extraction economically viable and affordable. Coal powers thermal power plants supplying electricity to industries and households nationwide. Despite renewable energy growth, coal remains India's primary energy resource due to established infrastructure, lower costs, and massive employment in coal mining sectors.
| 5. How do students identify mineral deposits and determine which extraction method to use? | |
Ans. Geologists identify mineral deposits through geological surveys, seismic studies, and core sampling to assess concentration and accessibility. Extraction methods depend on mineral depth, quality, surrounding terrain, and economic viability. Students can refer to mind maps and PPTs on mineral exploration techniques to understand how factors like ore grade and environmental regulations influence whether open-cast or underground mining is chosen.
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Apr 20, 2026 Last updated
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