High concentrations of carbon monoxide co can cause coma and possible death. The time required for a person to reach a cohb level capable of causing a coma can be approximated by the quadratic model.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.