Chemistry
Grade-6
Easy
Question
Opening the windows at least once a day can replace:
- Suspended particles from indoor air
- Sluggish and polluted indoor air
- CO2 from the indoor air
- Oxygen from the indoor air
Hint:
Air pollutants inside the home.
The correct answer is: Sluggish and polluted indoor air
Opening the windows at least once a day can replace: Sluggish and polluted indoor air.
When you think of pollution, you probably think of smoggy skies, car exhausts, and dirt blowing into the air from chimneys. However, the air inside your home often contains more toxins than the air outside. One of the reasons for poor indoor air quality is the dilution ratio. If the outside air was an Olympic-sized pool, your home would be like a thimble. Contaminants are simply more concentrated in buildings. All pollutants emitted by fireplaces, water heaters, gas stoves, and heating appliances are trapped inside the home.
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