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What is Around Us? — [Old] Social science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8[Old] Social scienceWhat is Around Us?1 Mark
MCQ
What is the proportion of oxygen in atmosphere $?$
  • ✓
    $21\%$
  • B
    $48\%$
  • C
    $78\%$
  • D
    $25\%$
✓

Answer

Correct option: A.
$21\%$

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