Answer:
One situation in which positive and negative numbers are used to describe values with opposite meanings is temperature. Positive numbers are used to represent temperatures above 0 degrees Celsius, and negative numbers are used to represent temperatures below 0 degrees Celsius. For example, a temperature of 5 degrees Celsius is warmer than a temperature of -3 degrees Celsius.
In this situation, 0 represents the temperature at which water freezes, which is 273.15 Kelvin or 0 degrees Celsius.