This system contains two symmetric regions with unusually low temperatures called “cold collars.” Ferric chloride is a candidate for this system’s so-called “unknown UV absorber.” Thermal tides excited in this system contribute to its superrotation. (-5[1])Estimates of the particle size (-5[1])distribution in this system can be derived from the glory phenomenon observed in images taken by Akatsuki. The disputed detection (10[1])of phosphine (10[1])in this (10[1])system (10[4]-5[1])might (10[1]-5[1])be evidence (10[1])it harbors (10[2])life. (10[3])Permanent (10[2])polar vortices are found in this system, which directly interacts with the solar wind due to a lack of a magnetic field. Carbon dioxide makes up nearly 97 percent of this system due to a runaway greenhouse (10[1])effect. (10[2]-5[1])For 10 points, what system contains a layer of sulfuric acid clouds (10[1])that completely encircle a terrestrial (10[1])planet? (10[2])■END■ (10[1])