1) Carbon dioxide 1) Blackdamp 2) Chokedamp 
Carbon dioxide. Used in Planted Tanks to maximize plant growth.
Carbon Dioxide Molar mass: 44.0095
see Carbon dioxide.
Carbon dioxide
Carbon dioxide (a greenhouse gas).
Synonym for carbon dioxide ... <biochemistry, physiology> A metabolic byproduct of carbohydrate metabolism. Carbon Dioxide collects in the tissues, is cleared by the blood (via the veins) and removed from the body via the lungs when we exhale air. ... Abbreviation: CO2 ... (13 Nov 1997) ... 
Type: Abbreviation Definitions: 1. Abbreviation for carbon dioxide.
see Carbon dioxide.
Carbon dioxide
Carbon Dioxide
Carbon dioxide.
acronym: carbon dioxide
Carbon dioxide. A gas linked to global warming emitted primarily by fossil fuels. Growing crops absorb CO2 and produce oxygen. 
Carbon Dioxide - odourless gas which is harmful to the environment
Carbon Dioxide, a natural product of fermentation and the gas used to push beer in draught beer systems. CO2 leaks in the gas system are dangerous because high concentrations of CO2 will displace air and cause asphyxiation.
carbon dioxide
See carbon dioxide.
carbon dioxide, a gas in Earth's atmosphere. It occurs naturally and is also a by-product of human activity such as burning fossil fuels and land-use change. It is the principal anthropogenic greenhouse gas.