Ninjawords

°The normal oxide of carbon, CO₂; a colorless, odorless gas formed during respiration and combustion and consumed by plants during photosynthesis.

°Compared to carbon monoxide, CO₂ is a non-toxic gas, similar to the inert gases. Carbon dioxide is used on welding and lasers; unlike noble gases, it only reacts on water and minerals to produce carbonates and carbonic acid (chiefly referred as carbonation).