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Winds, Storms and Cyclones — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceWinds, Storms and Cyclones1 Mark
MCQ
For escape of hot air room has:
  • ✓
    Ventilators
  • B
    Windows
  • C
    High walls
  • D
    Doors
✓

Answer

Correct option: A.
Ventilators
Ventilators are provided in the rooms at the top of the roofs because if the air inside the room gets hot, the hot air rises up and flows through these ventilators and thus cool air remains at bottom. It brings cool and fresh air in the room. Thus ventilators maintain conventional currents to keep the air fresh in the room.

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