Question

The hot air in the rooms rises up and flows out of ventilators. The fresh and cold air from outside flows into room from doors and windows.

• A. True
• B. False

Answer 1

The correct option is A True

1. When the temperature increases, the density of the air decreases.
2. When the density decreases, it rises up.
3. When the hot air rises up and flows out through the ventilators, the fresh and cold air flows from outside.

So the given statement is true.