[Solved] Under the Fair Credit Billing Act, a consumer must notify the creditor within ____ of the billing of a disputed charge. A) 1 week B) 30 days C) 60 days D) 90 days E) 6 months Chalk Formation: A type of limestone characterized by its fine, white, porous structure, formed from the accumulation of microorganisms' calcite shells. Microscopic Organisms: Tiny life forms, not visible to the naked eye, including bacteria, protozoa, and certain types of fungi and algae. Calcium Carbonate: A chemical compound with the formula CaCO3, found in rocks such as limestone, chalk, and marble, and is a major component of shells of marine organisms, snails, and eggs. Chalk Formation: A type of soft, white, porous sedimentary rock composed mainly of calcite or aragonite, formed from the skeletal remains of microorganisms.