weather quiz September 3, 2020 4:55 pm Weather Quiz: Most Oxygen NBC 5 Chief Meteorologist Rick Mitchell asks which city has the highest concentration of oxygen in the atmosphere? Local 2:21 New documentary highlights Oak Cliff bookstore 2:12 Denton's mayor denies ‘Pride Month' proclamation 2:41 New SMU president shares journey from UT to The Hilltop 2:32 Race for McKinney mayor heads to run-off June 7 2:09 First major initiative of new Dallas police chief wrangles nearly 100 felons
