The manufacture of 1000 ft2 of 5/8 in. thick gypsum board contributes 277 kg CO2eq. If a typical gypsum board is 4 ft x 8 ft x 5/8 in. thick, how many tons (U. S.) of CO2eq are produced for the manufacture of 50 of those typical sized boards

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.