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Air — Social Studies STD 7 — Question

CBSE BoardEnglish MediumSTD 7Social StudiesAir1 Mark
MCQ
Green plants use $.......$ to make their food and release $........$
  • A
    Oxygen, helium.
  • B
    Carbon dioxide, hydrogen.
  • C
    Helium, hydrogen.
  • ✓
    Carbon dioxide, oxygen.
✓

Answer

Correct option: D.
Carbon dioxide, oxygen.

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