alleryThe lowest grade of coal, formed from decaying plants in swamps, is:
APeat
BCoke
CChar
DSoot
Answer & Solution
Correct answer: A. Peat
1. Coal is graded by how deeply it was buried and how far it was compressed.
2. Decaying plants in swamps produce peat.
3. Peat has low carbon, high moisture and low heating capacity.
_Source: syllabus Social Science, 'Contemporary India II', Ch 5 'Minerals and Energy Resources'_
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