Minerals and Energy Resources
Meghalaya Board · Class 10 · Social Science
Flashcards for Minerals and Energy Resources — Meghalaya Board Class 10 Social Science. Quick Q&A cards covering key concepts, definitions, and formulas.
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Get startedWhat is a mineral according to geologists? Why are minerals so varied in nature?
Answer
A mineral is a homogeneous, naturally occurring substance with a definable internal structure. Minerals are varied because their formation depends on specific physical and chemical conditions. These c…
Ore
Answer
An ore is an accumulation of any mineral mixed with other elements. The mineral content must be in sufficient concentration to make its extraction commercially viable. The type of formation determines…
Describe the five main modes of occurrence of minerals with examples.
Answer
1. Veins and Lodes: In cracks of igneous/metamorphic rocks (tin, copper, zinc, lead) 2. Beds/Layers: In sedimentary rocks from deposition (coal, iron ore, gypsum, potash salt) 3. Residual deposits: Fr…
Ferrous Minerals
Answer
Ferrous minerals are iron-bearing minerals that account for about three-fourths of the total value of metallic mineral production in India. They provide a strong base for metallurgical industries. Exa…
Compare magnetite and hematite iron ores in terms of iron content and uses.
Answer
Magnetite: Finest iron ore with very high iron content (up to 70%). Has excellent magnetic qualities, especially valuable in electrical industry. Hematite: Most important industrial iron ore by quant…
Name the four major iron ore belts in India and their key characteristics.
Answer
1. Odisha-Jharkhand belt: High grade hematite in Badampahar (Odisha), Gua and Noamundi (Jharkhand) 2. Durg-Bastar-Chandrapur belt: Super high grade hematite in Bailladila range (Chhattisgarh), exporte…
Why is manganese important in steel manufacturing? How much is required?
Answer
Manganese is essential for manufacturing steel and ferro-manganese alloy. Nearly 10 kg of manganese is required to manufacture one tonne of steel. It is also used in manufacturing bleaching powder, in…
Why is India critically deficient in copper? What are its main uses and producing areas?
Answer
India has limited copper reserves and production, making it critically deficient. Copper is malleable, ductile, and a good conductor, making it essential for electrical cables, electronics, and chemic…
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