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Minerals and Energy Resources — Geography STD 10 — Question

ICSE BoardEnglish MediumSTD 10GeographyMinerals and Energy Resources2 Marks
Question
On what basis, quality of coal is decided?
✓

Answer

(i) It is decided on the basis of carbon content.
(ii) More the carbon, better the variety.
Anthracite with almost 90 per cent carbon content is the best variety of coal.

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