You want to buy a house. Would you like to buy a house having windows but no ventilators? Explain your answer.

Explanation

**Step-by-Step Solution:**

1. **Understanding Air Movement:**
- Warm air is lighter than cold air. This means that when warm air is present in a house, it tends to rise and move upwards.

2. **Role of Ventilators:**
- Ventilators are openings that allow warm air to escape from the house. They play a crucial role in maintaining a comfortable temperature inside.

...