Co2 (Noun)
Meaning
A heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis.
Classification
Nouns denoting substances.
Examples
- CO2 emissions from the power plant contribute significantly to the area's pollution problems.
- During the night, a plant releases oxygen and absorbs CO2 in a reversal of the process that occurs during the day.
- Carbonated beverages contain dissolved CO2 gas that produces the fizz.
- Increased CO2 levels in the atmosphere trap heat and contribute to global warming.
- A diver must exhale slowly to prevent a rapid release of CO2 bubbles in their bloodstream.