Carbon dioxide (CO2) is a colorless, odorless gas that is naturally present in the Earth’s atmosphere. It is produced by the respiration of all living organisms and by the burning of fossil fuels. CO2 is an important greenhouse gas, meaning that it traps heat in the atmosphere and contributes to global warming.
There are a number of ways to check for carbon dioxide. One simple method is to use a CO2 detector. CO2 detectors are available in a variety of shapes and sizes, and they can be used to measure the CO2 concentration in the air. Another method for checking for CO2 is to use a chemical indicator. Chemical indicators are available in the form of test tubes or strips, and they change color when they come into contact with CO2.