Final answer:
Temperature, rainfall, and wind are factors used to differentiate climate regions.
Step-by-step explanation:
The factors used to differentiate climate regions are temperature, rainfall, and wind.
Temperature refers to the degree of hotness or coldness in a region, which can vary significantly between different climate regions. Rainfall, or the amount of precipitation, also plays a crucial role in determining climate regions, as some areas may experience heavy rainfall while others may be very dry. Wind patterns, such as prevailing winds, can also influence climate regions, as they affect the movement of air masses and can contribute to variations in temperature and precipitation.