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प्रश्न
Why is a ventilator provided in a room?
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उत्तर
A ventilator is provided in a room because it helps in removing the hot air from the room and allows the fresh and cold air to come in.
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संबंधित प्रश्न
How is the size of a degree defined on a Fahrenheit scale?
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If you apply heat energy, the temperature of a system will _____.
Mention the three units which are used to measure the temperature.
Figure (a–d) shows the readings on four different thermometers. Indicate which of the reading shows the normal human body temperature?
