What process will decrease the level of co2 in the atmosphere

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

no but i do not usually comment or use my voice that much when it comes to social media