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Air — Social Studies STD 7 — Question

CBSE BoardEnglish MediumSTD 7Social StudiesAir1 Mark
MCQ
Which gases make the bulk of the atmosphere?
  • A
    Nitrogen.
  • B
    Oxygen.
  • ✓
    Both $(a)$ and $(b).$
  • D
    None of these.
✓

Answer

Correct option: C.
Both $(a)$ and $(b).$

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