Which of the following is NOT a dispersion pattern associated with pressure containers?

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The behavior being tested is how a release from a pressurized container spreads in the environment. Gas or vapor releases from such containers typically form shapes like a hemispheric cloud close to the source, a plume that is carried along by the wind, or a cone if the jet is restricted and fans out. Pool refers to a liquid spill that forms a surface layer on the ground or water, spreading due to gravity and surface tension rather than creating a vapor cloud. Since a pool describes liquid spreading rather than a gaseous dispersion pattern, it is not a dispersion pattern associated with pressure containers.