Land snails and slugs produce mucus, but so does every other kind of gastropod, from marine, freshwater and terrestrial habitats. The reproductive system of gastropods also produces mucus internally from special glands.
Dry ice was discovered rather than invented. It was first discovered by Charles Thilorier a French chemist in 1834. Check link below for more information on dry ice and dry i â¦ ce makers.
Liquid Carbon Dioxide (CO2) is the source of all dry ice products. The liquid is stored at 20 bar and around -20C. It is released through a nozzle to 1 bar at which point dry ice snow is created. This snow is compressed and extruded at around 1500 psi to form pellets and blocks of dry ice..