Cloud the bottom of the hierarchy. Clouds in the troposphere assume five physical forms based on structure and process of formation. These forms are commonly used for the purpose of satellite analysis. They are given below in approximate ascending order of instability or convective activity. "Non-convective" stratiform clouds appear in "stable" airmass conditions and, in general, have flat sheet-like structures that can form at any altitude in the troposphere. The stratiform group is divided by altitude range into the genera cirrostratus (high-level), altostratus (mid-level), stratus (low-level), and nimbostratus (multi-level). Fog is commonly considered a surface-based cloud layer. The fog may form
The Who, What, or Where Game or Edwin Newman at 12:55 p.m. (before a 30-minute affiliate break), "The Who, What, or Where Game" only ran 25 minutes each day, instead of the customary 30. Similar to "Jeopardy!", which preceded it at 12 Noon/11 a.m. Central, "The Who, What, or Where Game" proved to be an effective stablemate to its lead-in. "The Who, What, or Where Game" succeeded a short-lived show called "Name Droppers", hosted by Los Angeles-area disc jockeys Al Lohman and Roger Barkley; it was succeeded in turn by "Jackpot." Coincidentally, "The Who, What, or Where Game" announcer Darrow would later host a Canadian-produced revival