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Chemistry in Everyday Life. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceChemistry in Everyday Life.1 Mark
MCQ
When lignite becomes darker and harder over time ………………… coal is formed.
  • A
    lignite
  • B
    bituminous
  • C
    anthracite
  • ✓
    sub-bituminous
✓

Answer

Correct option: D.
sub-bituminous
sub-bituminous

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