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Air and Atmosphere — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYAir and Atmosphere1 Mark
MCQ
The natural way of adding oxygen to air which involves green plants is called
  • ✓
    photosynthesis
  • B
    respiration
  • C
    burning
  • D
    dissolution
✓

Answer

Correct option: A.
photosynthesis
photosynthesis

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