Normally a license is required to Fish in Maryland but there are a few exceptions to this requirement. 1  The first option is there are specific areas in Maryland that are designated License Free Fishing Areas throughout the tidal portions of the Chesapeake Bay and one nontidal location.
Best Answer: In 1835 the French chemist Charles Thilorier published the first account of dry ice. Upon opening the lid of a large cylinder containing liquid carbon dioxide he noted much of the carbon dioxide rapidly evaporated leaving solid dry ice in the container. Throughout the next 60 years, dry ice was observed and tested by scientists.So dry ice mainly was named dry ice because the carbon dioxide had evaporated into the air without making a watery mess, and that is how it got its name. PragmaticAlien is correct. Frozen CO2 goes directly from solid to gas.
Hazards of Dry Ice. Dry ice is the solid form of carbon dioxide. It is non-combustible and is available in flakes, pellets, or block form. Dry ice will sublime (vaporizes directly to the gas state) at a temperature of -78.5 C (-109.3 F) or higher. Dry ice is commonly used to cool reactions or to ship biological specimens. Dry ice is considered hazardous three reasons: 1  Explosion hazard: dry ice releases a large volume of carbon dioxide gas as it sublimates. 2  Suffocation hazard: a large volume of carbon dioxide gas emitted in a confined space, or other unventilated area (e.g. cold room) may create an oxygen deficient atmosphere.