📊 Physics
Q. Ventilators are provided near the ceiling of the room as
  • (A) these do not look nice in the lower part
  • (B) the exhaled warmer air rises up & goes out
  • (C) these provide some sunlight in the room
  • (D) these provide cross ventilation in the room
✅ Correct Answer: (B) the exhaled warmer air rises up & goes out

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Ram Sharma
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