Final answer:
Urine does not become more alkaline if allowed to sit at room temperature.
Step-by-step explanation:
The statement True - urine becomes more alkaline if it is allowed to sit at room temperature is false. Urine is typically slightly acidic with a pH range of 4.5 to 8.0. The pH of urine can be influenced by diet, with meats lowering the pH and citrus fruits, vegetables, and dairy products raising the pH.