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Changes Around Us. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceChanges Around Us.1 Mark
MCQ
Limestone contains ______ mainly.
  • A
    calcium chloride
  • B
    Calcium carbonate
  • C
    calcium nitrate
  • D
    calcium sulphate
✓

Answer

Limestone contains Calcium carbonate mainly.

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