You have studied that the earth's crust is made up of different minerals embedded in rocks. Various metals are extracted from these minerals after refinement. In all stages of development, human beings use minerals for their livelihood, decoration, festivities, religious and ceremonial rites. In this chapter, you will learn about minerals, their classification, how to conserve minerals, different types of energy resources and how we can conserve these energy resources. We have compiled all these important topics in Minerals And Energy Resources Class 10 - Revision Notes, Important Terms with Explanation. Go through these to get an insight of this chapter.
Chapter At A Glance
- The earth's crust is made up of different minerals.
- Minerals are usually found in ores.
- Iron ore is the basic mineral and backbone of the industrial development.
- Orissa - Jharkand belt is the largest producer of iron ore in India.
- Orissa is the largest magnese and bauxite producing state in India.
- Mining has become a 'Killer Industry'.
- Coal occurs in rocks of Gondwana period (200 million years ago).
- About 63 per cent of India's petroleum production is from Mumbai High.
- H.B.J. Gas pipeline is 1700km. long.
- The largest solar plant of India is located at Madhopur near Bhuj.
- The plants using cattle dung are known as Gobar gas plants.
- Two Geothermal energy plants are located at Manikarn and Puga valley in Ladakh.
Important Terms & Their Explanation
- Mineral - A natural chemical compound.
- Ore - Ore is the raw metal extracted from the earth.
- Mining - A robber industry.
- Lignite - Low quality brown coal.
- Fossil fuels - Fossils formed by decomposition of animals and plants in sedimentary rocks.
- Ferrous minerals - Minerals leaving iron content.
- Shaft mines - Deep mines.
- Placer deposits - Alluvial deposits of sands.
- Open pit mining - Shallow pits used for extracting minerals.
- Rate hole mining - Techniques of mining used in tribal areas.
- Peat - Lowest quality of coal.
- Anthracite - Highest quality of coal.
- Thermal Power - Power generated from coal, oil and gas.
- L.P.G - Liquified Petroleum Gas.
- C.N.G - Compressed Natural Gas