Examlex
Water is the least dense when it ________.
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.
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