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Air — Social Studies STD 7 — Question

CBSE BoardEnglish MediumSTD 7Social StudiesAir1 Mark
MCQ
When the air is heated it becomes?
  • ✓
    Lighter.
  • B
    Heavier.
  • C
    Colder.
  • D
    None of these.
✓

Answer

Correct option: A.
Lighter.

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