Which abbreviation denotes degrees Celsius?

The abbreviation that denotes degrees Celsius is "C." Celsius is a unit of measurement for temperature in the metric system. It is commonly used in many countries around the world for weather reporting and scientific calculations.

In contrast, the other abbreviations serve different purposes: "F" stands for degrees Fahrenheit, which is primarily used in the United States; "K" represents Kelvin, a unit used in scientific contexts for absolute temperature; and "R" refers to degrees Rankine, which is another temperature scale mainly utilized in specific engineering applications. By knowing these distinctions, it becomes clear that "C" is the correct abbreviation for degrees Celsius, essential for understanding temperature measurements in both everyday and scientific contexts.