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Minerals and Energy Resources
Why do we need to conserve mineral resources?
We need to conserve mineral resources for the resaons mentioned below:
(i)The geological processes of mineral formation are so slow that the rates of replenishment are infinitely small in comparison to the present rates of consumption.
(ii)Mineral resources are, therefore, finite and non-renewable. Rich mineral deposits are our country’s extremely valuable but short-lived possessions.
(iii)Continued extraction of ores leads to increasing costs as mineral extraction comes from greater depths along with decrease in quality.
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What is a mineral?
How are minerals formed in igneous and metamorphic rocks?
Why do we need to conserve mineral resources?
Describe the distribution of coal in India.
Why do you think that solar energy has a bright future in India?
Fill the name of the correct mineral in the crossword below:
Across:
1. A ferrous mineral (9)
2. Raw material for cement industry (9)
3. Finest iron-ore with magnetic properties (9)
4. Highest quality hard coal (10)
5. Aluminium is obtained from this ore (7)
6. Khetri mines are famous for this mineral (6)
7. Formed due to evaporation (6)
Down:
1. Found in placer deposit (4)
2. Iron-ore mined in Bailadila (8)
3. Indispensable for electrical industry (4)
4. Geological Age of coal found in north east India (8)
5. Formed in veins and lodes (3)
Why is mica used in toothpaste?
Which one of the following is the hardest mineral?
An accumulation of any mineral mixed with other element is described as
Major metallic minerals like tin, copper, zinc and lead etc. obtained from
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